problem with Caching PATH

[MrGhost]

i setup the caching path in the admin acp it links to

http://cache.gamemasterpro.com/cache - (html url)
or
http://cache.gamemasterpro.com/cache/

/hsphere/local/home/c2/cache.gamemasterpro.com/cache/ - (caching path)

when i try it doesnt load the cache now i dunno why... am i doing something wrong?

Also does it help with optimization having the cache on a different part of the server?