So I didn't use the G Drive Download, but I see all 14 parts on the download page itself. Are you sure you actually downloaded ALL the parts?
Also, seriously, use UpToBox or one of the other links that give you the entire game in 1 rar file, instead of this ****
EDIT: Also, if you are not running SX OS, this download is completely useless to you...
No other CFW can run .XCI files atm. Though you could try an convert the file, if you're feeling lucky.