If rest of enables work then that's a imaging issue , that can be fixed but only if you wish to re-design it :P
Just replace your Habbo SWF with a recommended 1
For config.ini for line 25 - mus.tcp.allowedadd have it like this mus.tcp.allowedadd=yourip ; yourdomain
I.E mus.tcp.allowedadd=25.78.245.55 ; freeze.pw
Is this with IIS? If so it's either your ht.access or something else make sure you've got PHP and url rewrite installed. If not with IIS post your code