Are there any alternative browsers to Internet Explorer that are equally good? I'm using Windows XP.

There definitely are — and the great thing about web browsers is that they're all free! So you can download and try them out and choose the one that works the best for you.

Here are some alternatives to IE that all run on Windows, in order of popularity:

Mozilla Firefox
The primary Open Source browser that is currently holding the second place for most used browser, after Internet Explorer.

Safari
This browser used to be exclusively available on Macs, but Apple has now released a beta version for Windows.

Opera
Before the advent of Safari, Opera used to be third in line. It's still a very good alternative.

Netscape Navigator
Once the king of browsers, it has now been eclipsed by IE and others.