Ran into that problem myself moving the website.
What the deal is... Linux is POSIX compliant, which means all-of-a-sudden case matters. X.bmp, X.BMP, x.bmp, and x.BMP are now four different file names, whereas on a Windows platform, they're the same (one of the wonderful simplifications of the *nix kernel that Micro$oft implemented when the created Windows NT).
So basically, check that your file name and the file referenced in your HTML code have the same capitalizations.
As far as linking, feel free. It's
http://www.quasispace.org as the primary site. I'm going to change the front page on the current server to redirect over there so I don't have to mess with the DotTK people. I also have
http://www.quasispace.com parked there, so either one will work.
t.ogre
qwfh