Sheesh, I hate to beat a dead horse guys... 
How about when you want different apps in their respective folders, as in the forums in forums, chat in chat, etc.... but want a global login using the cookies, since these have been so well written? My problem is that a different cookie is written, depending on what folder the common/login files are in. Then, when navigating to any sub-folders, it doesn't track that I'm logged in, because it's looking for a different cookie? I hope that makes sense
For example, if I'm at the root directory, where I'd like the common/login/etc to be for globally logging in, the cookie is set appropriately with the site name itself. If I then go to the forums folder, the logged state isn't synced, because it's looking for @forums cookie.
I hope I'm not being toooooo newbie-ish here
but is there an easy answer for a workaround with that?