You know buddy, drums is one of those instruments that its almost impossibble to describe with text, and drum tab is not going to help you if you can't get the feel of a rythm by listening. Your eyes are not going to help you understand timing. I strongly suggest you perservere with listening to tapes and trying to play along in time with them, not trying to copy, just try try to keep similiar timing. Then blow 40 bux and take 4 drum lessons from a live instructor who can show you the basic terms and rythms. You need someone to show you.
as Burroughs once said "talking about music is like dancing about architecture"
a flam is when you hit the snare at an angle with the stick held a bit more loosely in your fingers so it kind of "braps" across the head. The stick hits the head a couple times with the stroke but the individual hits are not clear, they run together or "flam".
Pay someone to show you in person man, or your just going to frustrate yourself.
"I have always been of the opinion that consistency is the last refuge of the unimaginative" - O. Wilde
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They say "Sing while you slave, but I just get bored" - B.Dylan