I read the Roblox Tutorial on it, but it kind of confuses me. If anyone can help me at all, I'd be very grateful.
places to start would be the PlayerAdded() Event, Local scripts, and reading about guis, and just playing around with things.
Links: http://wiki.roblox.com/index.php?title=PlayerAdded http://wiki.roblox.com/index.php?title=ScreenGui http://wiki.roblox.com/index.php?title=Local_script