For that particular thing, make a camera follow an object, there are several scripts and tutorials already in the Editors Depot.
It would take us more time to explain it to you than for you to just click yourself into the Ed Depot snippits, camera & cutscene board, and just select
this snippit by snYpir.
That's why 99% of the time the answers are check the ed depot and the forum. And also, did you ever stop to think that maybe the people saying this doesn't know how to do it?
And, even if they did, the easiest way for all parties involved is if you check the ed depot and get the already made script.
This is the case with most questions asked, that they can be found in the ed depot, but more than one time I've helped people out with original scripts. Scripts that I'm more or less certain aren't in the ed depot.
So, in conclusion, you get directed to the ed depot when:
1) We are certain that what you're looking for is already there
2) We do not know how to do it
3) We want to make sure if it's there or not (more often than not it goes "Have you checked the ed depot?" than "go check...")
Now, I'm off.
*rolls around on the floor*