Ouch!
I'm afraid, you'll have to do some brainstorming of your bookmarks... and re-personalize everything.
You see, when you Delete a Windows Account from your computer you are basically wiping the existence of that account off the computer (no saved documents, web browsing, cookies, bookmarks, NOTHING, it's all deleted with the account), so once it's gone... it's gone.
Good luck with re-personalizing!
Tranc3r