Actually AOL is supposed to be quite a good browser, but thats not the point
It should install, but if not, do try downloading this:
If you can't download it on your PC, just put it on cd or on an external drive after downloading it from the machine your on now.
Hopefully that'll install, though check in the Control Panel, for Uninstall Programs, and check that AOL is uninstalled, before trying to re-install it, as something might have gone wrong
I hope this helps