You don't need any webspace to host it. We do that for you

Scan the cover at
at least 300dpi (if you can scan it at 600dpi which is preferred for raw scans). Make sure it's flat (like put a heavy book or something like that on the scanner) to get the best results. Then click the link on the left side of this page that says
"Upload a cover".
Doing so will take you here:
http://www.thecoverproject.net/upload.phpThere, just choose your scanned cover and check the box that says
"This is a raw scan"After that, you scans will be available to anyone here to work with.
Good luck with your request!