Help With STR8-150 ToneArm?

So, I finally got my first Turntable :D, the STR8-150 and I love it so far :)

I've never owned or even used real turntables and whenever I scratch it will sometimes skip ahead a few beats or so (One whole rotation of the record). I don't know if it because I am not scratching properly but I have read that the tonearm on the STR8-150s are a bit faulty.

Anywho, I was wondering if someone could give me a detailed guide on how to properly set up the tonearm? I do not think I set it up right..

Thanks,

DJ Bobwont

Nevermind, I got it! Thanks to DJ Angelo's turntabalist tutorials!