First thing i would do is try to access the remote computer via a browser

http://remotecomp --if this fails then you have either iis/firewall issues

This will tell you if iis is setup ok and if there are any firewall issues.

Then you will probably want to go to

http://remotecomp/reportserver (i think) - this should give you a directory listing of your reports --if this fails you have a problem with your reporting services