I just baught the Final Fantasy XI yesterday, and tried to install it without success. I have Windows Vista (this is the PC version of the game) and when i double clicked on the installed game it said my system didnt support the software. I looked up the game online, and found that i had to install wondows vista compatability software before i could install the game disk. So, i did this and was able to get onto PlayOnline just fine. I registered on Playonline, and went through all the steps, except now when i try and install the game istself, it says its already installed, and when i try to click on it in Playonline it says its not installed. Whew! lol

If anyone knows whats going on, please tell me whats happening as soon as possible i would love to get to play this game as soon as i can. Any help would be greatly appreciated! Thank you.
Its Final Fantasy XI Vana'diel collection 2007 PlayOnline. (The game and PlayOnline software).