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"I stand corrected on

Herbalife

(HLF) - Get Report

," Jim Cramer told viewers of his "Mad Money" TV show Tuesday. "It is a buy."

Cramer said he had been negative on the stock because he assumed it was just another nutrition-supplement player and multilevel marketer, no better than

Usana Health Sciences

(USNA) - Get Report

. "But I was wrong," he said.

In fact, Herbalife "does not belong at the bottom of the barrel" and deserves to trade higher, not lower, Cramer said. The company not only had better-than-expected earnings in its most recent quarter, but it also won approval in China to sell its products directly in two provinces, he said.

Herbalife has "a high-margin business model" and generates a lot of free cash flow, Cramer added. Plus, the company is buying back stock, has a 2% dividend and is even benefiting from the weak dollar because of its exposure outside the U.S.

Even after all those positives, Herbalife is selling more cheaply than its peers, Cramer said. But he doesn't believe that should last. This stock is inexpensive and it's not going to stay a market secret forever, he said.

Michael Johnson, Herbalife's chief executive, has turned the company around and now people can get in "artificially low," said Cramer.

Further, said Cramer, Herbalife might be a controversial name, but its supplements seem to work. It is a triple buy, but don't put in orders before the stock starts trading in the regular market session, he advised.

Infrastructure Play: Aecom

When Cramer first recommended

Foster Wheeler

(FWLT)

, he said he had no idea it would go up so much. In fact, Foster Wheeler has run up so high that now Cramer feels the need to find people the next great infrastructure play. Cramer introduced

Aecom Technology

(ACM) - Get Report

as just that.

Aecom is a "great California-based infrastructure play," whose initial public offering "should have been a huge success," Cramer said. However, because the tape was weak when it came public last week, Aecom remained flat. Now that there is a lot more strength in the market, Cramer believes Aecom is going much higher.

The company has global exposure and a lot of great contracts in its pipeline, with a "huge presence" in Dubai and Abu Dhabi, he said. Also, it is "a big beneficiary of the privatization of the government," Cramer continued.

The one big difference between Aecom and players like Foster Wheeler or

McDermott

(MDR) - Get Report

is that its book of business has a little less energy and is instead more diverse, he said.

Aecom's backlog was up 63% year over year in 2006, and at the end of March, the company's backlog was up even more, Cramer said. If people want exposure in the infrastructure sector and they feel like they missed the big run in plays like Foster Wheeler or McDermott, Cramer said they should consider getting into Aecom.

H-P's Turnaround King

Continuing with his weeklong series of "transformational managers," Cramer announced

Hewlett-Packard's

(HPQ) - Get Report

Mark Hurd as the next name on his CEO Wall of Fame list.

Hurd took over HPQ, which Cramer owns for his charitable trust,

Action Alerts PLUS, on March 29, 2005, replacing Carly Fiorina, Cramer said. And in the couple of years that Hurd has run HPQ, the stock has doubled.

Before, HPQ was in "disarray," and Cramer said he didn't have much hope Hurd would be bale to turn it around. However, the CEO "proved me wrong," he said.

At the point when Hurd stepped in as chief executive, HPQ was trailing

Dell

(DELL) - Get Report

in terms of market share for PCs. In addition, it had "bloated" payrolls and a server business that was "laughable," Cramer said. And the former CEO Fiorina had missed the estimates of so many quarters, she was famed for overpromising and underdelivering.

After two years of Hurd, HPQ now exceeds estimates, is above Dell in PC market share, and underpromises and overdelivers, Cramer said.

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"Owning stocks with great leaders is its own reward because these stocks go higher," Cramer said. "That's why I want you with Mark Hurd. That's why I want you with Hewlett-Packard."

Harrah's Lets It Ride Private

Cramer welcomed Gary Loveman, chairman and CEO of

Harrah's Entertainment

(HET)

, to the show and asked him to explain why it's better for a company to be private than public.

Loveman said that after a company is taken private, its management team is no longer distracted with meaningless business activities, and is able to focus on "things that really do build value" for the business over time.

"The company is being run now to a large degree as if it's private, so I'm living a bit of it now," Loveman said. "It opens up other avenues for value creation."

If a company is private, it is able to save money and "mature gracefully," he added. Whereas, in the public market the company is uniformly focused on income statements, and any project is considered a good project until it fails to bring in money.

To view Cramer's interview with Gary Loveman, please click here.

Lightning Round

Cramer was bullish on

Six Flags

(SIX) - Get Report

,

Ford

(F) - Get Report

,

Wells Fargo

(WFC) - Get Report

,

Goldman Sachs

(GS) - Get Report

,

Peabody Energy

(BTU) - Get Report

,

Chemed

(CHE) - Get Report

,

Charter Communications

(CHTR) - Get Report

,

J.C. Penney

(JCP) - Get Report

,

Kohl's

(KSS) - Get Report

,

Saks

(SKS)

,

Dick's Sporting Goods

(DKS) - Get Report

,

Lowe's

(LOW) - Get Report

,

Sears

(SHLD)

,

Caterpillar

(CAT) - Get Report

,

Joy Global

(JOYG)

and

Syneron Medical

(ELOS)

.

Cramer was bearish on

Consol Energy

(CNX) - Get Report

,

Massey Energy

(MEE)

,

DivX

(DIVX)

,

Big Lots

(BIG) - Get Report

,

Sport Chalet

(SPCHB)

and

Central Garden & Pet

(CENT) - Get Report

.

For more of Cramer's insights during the most recent Lightning Round, click here

.

Want more Cramer? Check out Jim's rules and commandments for investing from his popular book by

clicking here

.

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At the time of publication, Cramer was long Caterpillar, Goldman Sachs, Hewlett-Packard, NYSE Euronext and Sears Holdings.

Jim Cramer, host of the CNBC television program "Mad Money," is a Markets Commentator for TheStreet.com, Inc., and CNBC, and a director and co-founder of TheStreet.com. All opinions expressed by Mr. Cramer on "Mad Money" are his own and do not reflect the opinions of TheStreet.com or its affiliates, or CNBC, NBC UNIVERSAL or their parent company or affiliates. Mr. Cramer's opinions are based upon information he considers to be reliable, but neither TheStreet.com, nor CNBC, nor either of their affiliates and/or subsidiaries warrant its completeness or accuracy, and it should not be relied upon as such. Mr. Cramer's statements are based on his opinions at the time statements are made, and are subject to change without notice. No part of Mr. Cramer's compensation from CNBC or TheStreet.com is related to the specific opinions expressed by him on "Mad Money."

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