I had this same problem when trying to install in Vista (32 bit) on a Dell XPS M1330. So, I just tried installing through windows from an XP SP3 box and get the following error:
* About to connect() to upload.linuxmint.com port 80 (#0)
* Trying 126.96.36.199... * Timeout
* couldn't connect to host
* Closing connection #0
I tried just going directly to upload.linuxmint.com using http://upload.linuxmint.com
in firefox from the same machine just to see if it was a proxy issue. I repeatedly get:
404 - Not Found
I can get to http://www.linuxmint.com
and obviously can get to www.forums.linixmint.com
(or I wouldn't be posting this) through the same instance of firefox.
If I try to ping upload.linuxmint.com and the request times out.
Does upload.linuxmint.com exist? The ping resolves to the same 188.8.131.52 on the ping, but it does not respond.