merely a few suggestions ..
.. and in no way 'official' </disclaimer>. Hi Bri', being lately from ME to XP (world of difference, yes?), you may run into many things done differently. However ..
1) The 'Full Monty' SSD uninstall is best described at:
http://forums.spybot.info/showpost.php?p=182370&postcount=2
2) If you are sufficiently
careful, Registry editing is not all that hard .. and indeed is one of the preferred methods of cleaning up a 'dirty uninstall' - often simply deleting things may lead to problems, almost always best to use the dedicated uninstaller in CP±Programs (or on the Startmenu/..) as that cleans up the less visible traces of an app. A nice editor is offered at the following:
http://www.spybot.info/en/regalyzer/index.html
The absolute do-not-forget is to back up before making any changes while directly editing the Registry. Save backup keys, etc in a folder with an explanatory note to yourself and archive it in external storage for safety JustinCase (I believe RegAlyz has an 'undo' function if that appeals to you) .. for casual reading, open .reg files in NotePad as they are
live files, lol - get a Dummies book on Registry editing if you like (where I started when all those curly bracket thingies seemed to get in my way all the time,

). That said, you can use the 'Find' to uncover remnants of 'dirty uninstalls'/deletes.
RESPECT but do not
fear the Registry .. and always use the dedicated uninstaller
3) Sometimes a simple method to get a fairly clean uninstall is to (re)install the app that was merely "deleted", (don't even run it) and then use the dedicated uninstaller (usually cleans up better) and REboot afterwards (not always necessary, but it's a habit - sometimes a shutdown/BOOT is even better). Apps that use profiles may leave remnants (especially with version upgrades, many times it is a good thing .. but sometimes ...).
Hope this may help a bit `til real help gets back to ya