Microsoft is only offering updates for XP with at least SP1 installed. You don't mention which version of XP Home you have on the disk, if you have SP1, then you can still get updates from Microsoft, including IE7, by going to Start > All Programs > Windows Update
If you don't have at least SP1, then get a disk from Microsoft that will update your computer to SP2, and then get the rest of the updates using the method listed above.
You can order a disk of SP2 HERE
. This, of course, would especially be the preferred course of action for someone with a slow internet connection as it is a huge download.