My computer, after a week and a half of heavy unwillingness of the computer screen to actually connect to the mainframe properly, has totally re-installed back to the way it was when we bought it. I still got all my programs and documents (though the start -> programs list looks awkwardly short...), but all the bookmarks are gone, links and preferences are all back to default. It thinks I'm new at everything and everything is where it's supposed to be normally. It sucks. I will vomit black blood on my computer until it impales itself in despair.
Check out the Add/Remove software listing. If none of your programs are listed, you may have to re-install them.
Let me guess... you have WXPH or WXPP and you were using the administrator account to do all your work. You then rebuilt your system. Guess what? When you do that it wipes out all your bookmarks and email. The only way around it is to make a new administrator account (separate install on the disk instead of writing over the old install) then importing and cut & pasting. If you had created and used a user account, then when you re-install you can recreate new accounts with the same names and do an import of bookmarks and email. And while you're at it, make it a Restricted (W2K) or Limited (WXP) account, so that system files don't get trashed, which will necessitate a rebuild. Let me guess... you're using WXP Home. Well, guess what? Whenever you create a user account it automatically gives it Admin privs. That is not good...