Unless you can find a crack or some other way around the activation, it won't let you install it on a second computer. Mr. Gates was kind enough to offer a "discount" on a license for a second copy of XP for home use. It's something like $10 off.
The CD that comes with the Dell won't even work on non Dell computer. Again, more copy protection "features."
Mr. Gates does one very good reason for getting people off of 98 and that is all of the security holes in it. While not perfect, XP is much better, not to mention far more stable.
goates