So...where do I started? idtech3/c

I've had the ODK1 for a few years, and have just now started implementing it in a project. It's a Quake 3 Arena based project, based in C.

I have SDK .8 and the runtime set up, with the demos working, but I'm not entirely sure what I need to do from here, or what I need to actually put INTO the Q3A source code to get the angles to transfer to what's called ps_viewangles in the idtech3 engine.

Any protips, or resources that'll help me get started?