Hi as shane says the forum is for members to post, Metaboli support don't see or post here at all, but Some of us members do try and help when and where we can.
First what game is it that your trying to download, and second are you using a 32 bit version of vista Metaboli doesn't run on a 64bit OS at present.
The only game that has been found to work with 64bit is Kings bounty as that uses a newer player format (Yummy) where as the rest of the games and service use Extent. if your using 64bit i'm afraid your at a loss, the T&C does state that the service is currently 32bit only it's also stated on the sign up page as well.
The support email addy if you want to contact them is
support@metaboli.co.uk use your ISP email client as web based ones such as hotmail etc see metaboli emails as spam and don't send them at all or are very slow in doing so. you will get a automatic reply from the metaboli servers,
reply to that email don't change anything or send a new one and someone at support will get back to you.