I've never had any trouble installing Add-Ons for Vista. My Blockland Folder automatically placed itself outside of the Programs Folder, so I don't seem to get the problem that Space Guy is explaining. It's defintely slightly longer than with Windows XP, but I see no problem with it. I just;
Download-->Open Containing Folder (Via the FireFox Downloads thingy)-->Cut File-->Navigate to the Blockland Add-Ons Folder-->Paste-->Done.
That's probably the longest method. Doesn't bother me though. Also, try using RTB In-Game MOD Manager for some of it, does save a certain amount of time on certain files.
