I'm sorry to continue this discussion, but Bohemian, if in fact you have had a legitimate business for 7 years, then you should KNOW that what you are suggesting is not only asking for trouble, but it completely illegal! Maybe you can get away with doing this once in a while under the name of your business, but even then you need to report this type of thing in case you should ever be audited. As for recommending that someone get a business license solely to rip off the IRS, that has to be one of the dumbest things I have ever heard. (Tempting, but dumb.)
BTW, after doing a little investigating, it looks like these heat sinks should fit on a SS7 board, and should probably fit on a Socket 370 as well. Only way to find out for sure is to try, but I've heard from a few people who say that it works with a little adjustment to the clip...