The message you received is a mere ripoff of an older hoax letter about Bill Gates' e-mail tracking software (which does not exist). Come on - Microsoft may not be your favorite company, but they're not stupid enough to pay random people thousands of dollars for forwarding an e-mail message. (How do you think Gates stayed so wealthy?)

Why someone bothered to write these letters is a mystery to those of us who have more productive things to do with our time, but one thing is clear: these hoaxes are annoying. They spread quickly, take up time in your day and space in your e-mailbox, and are hard to get rid of... because people keep forwarding them.

On the Internet than almost anyplace else, you have to remember the adage, "If it sounds too good to be true, it probably is." Before you send a message of even slightly questionable origin off to your friends or co-workers, check it out at the source yourself - visit the site of the company in question or drop by one of these reputable hoax sites:

http://urbanlegends.miningco.com/library/bltrackd.htm
http://www.philb.com/hoaxes.htm
http://www.datafellows.com/news/hoax/
http://ciac.llnl.gov/ciac/CIACHoaxes.html
http://www.nonprofit.net/hoax/
http://www.nai.com/services/support/hoax/
http://kumite.com/myths/
http://www.symantec.com/avcenter/hoax.html

P.S. The "stolen kidney" thing is a hoax, too.