|I daresay you can purchase an upgrade disk. However, you need to think carefully about doing so for the following reasons:|
1. Upgrades are nearly always dodgy - clean install is best.
2. There might not be any suitable XP drivers for your hardware.
3. The hardware might not be man enough for XP, it could crawl.
On the last point you need to supply the spec for your computer.
Without more info, and if you really want XP, I would suggest looking around for a cheap computer with XP already on it and a reasonable spec.
There is a free alternative. Download Opera browser 10.63 and use that on your W98 instead of IE. This version, released Oct 12 2010, is the last one suitable for W98. It is fast, lightweight and not anything near as old as your IE. That makes it safer by age and also less hackers attack Opera:
Always pop back and let us know the outcome - thanks