help me open a hidden/system folder

well the other day i was just searching on my computer for all the image files just to see what i had and i came across some pretty disturbing things when i check the box to include system/hidden folder. as it turns out i found some porn pics that i was looking at earlier in a folder but when i went to find it i could not because it was not visable the path where it was is
c:\Documents and Settings\Randal\Local Settings\Temporary Internet Files

well now i cant seem to find it but i am pretty sure that that was the path name so does this directory just clear itself or what?

Tools -> Folder Options

wow you rule and any answer as to why the files disappeared since they are temporary they just clear with the history or what?

There's a limit on your cache, it just deletes old stuff once it reaches its limit.

(Check Tools -> Internet Options and hit "Settings" by the Temporary Internet Files frame to see what your limit is / change it)