Ya know, its been doing the same thing to me, when I try to use the setup. Running it as an Admin only results in a file not found message. I use Vista x86..
Ugh. Second time downloading it.. and fileplanet isn't being very cooperative, either. I don't think it ever finished the download- rather, it just, about 80% of the way through, shunted me out, and stuck me back into the line.
Sounds like your Fileplanet download has more corrupt files than just the Setup.exe. Delete the files that it downloaded and try the downloader again or pick a different source for the Open Beta Client from the download page.
Forgot to check back on this thread. I let the installer "Sit" and went off to do other things that took up my time. I came back about 30 minutes later and I had a message telling me to click finish to complete the install. *Shrugs* I've been playing and submitting bug reports ever since! Weird, however in any case, I'm enjoying the game.
I had the same issue. 1/13 Fileplanet DL (10jigs). Vista 64. Wrong Windows version error. Started Torrent DL before heading to work. Depending on progress, will check to see if just snagging the .EXE is a viable solution. Maybe even throw in one fo those magic "recyle bin" hot fixes.