Hey i use gametracker for clan to track online members and stuff but do my members have to do anything else? like when i take the embed code do i have to add nicknames or does it see if im playing a game by ip address/ (i play urt) because no one is ever online but even when im playing it says im offline! But when i go to the add nicknames and i do it, it says im online on a certant server but the banner still says offline!?!?!? do i have to wait like 30 minutes? or whats the deal?

You must join on some server than your banner will show online.

The profile banners update based on your status on GT Lite, not the nicknames on your profile.

so basicly i need to download game tracker lite?

Yes, you would need to download GT lite so that you have it and can use it.

Is it fr mac?

Yes you can see that there is a mac version here http://www.gametracker.com/downloads/