In WWE Smackdown! Vs RAW 2008 there are 8 fighting styles (as most of you know) this is a guide for useing them and what they do.

Brawler
Primary Move: Wreck Shop
Having a Stored fighting style icon, press R1+Triangle for limited ultra power (I think)

Secondary Abilities
Fists of Fury: Press R1+Square to do a combo of 3 hits
Ground and Pound: Press X near your opponentsUpper Body when Down(Back or Chest up)

Dirty
Primary Move: Super Dirty Move
Having a stored fighting style icon press R1+Triangle to do an eye poke and then a fore arm to the groin.

Secondary Abilities
Referee Shield: Hold X while approching the Ref to use him as a shield (release X to push ref into opponent)
Argue with Ref: If your opponent kicks out of your pin you can argue with the ref by pressing Triangle
Ignore Rope Break: Just continue your submission after a rope break.

Hardcore
Primary Move: Hardcore Ressurection
Hold R1+Triangle (while having a stored fighting style icon) while holding a chair to bust yourself up to have extra power.

Secondary Abilaties
Armed and Dangerous: Grapple moves with weapons
Hardcore Rejuvination: Get a full momentum bar if you get busted open by your opponent (not you!)

High Flyer:
Primary Move: Possum Pin
Hold down R1+Triangle while down (having a stored fighting style icon)

Secondary Abilaties
Evasive Roll: Hold R2 or L2 and move.
Springboard Attack: Press Square while moving twoard the ropes to jump of the ropes to attack your opponent.

Powerhouse:
Primary Move: Rampage Mode
Press R1+Triangle (having a stored fighting style icon) to be unstoppable for a limited amount of time.

Secondary Abilities
Strong Irish Whip: Hold down O for a stronger irish whip.

Showman:
Pimary Move: Steal Finishing Move
R1+Triangle (having a.... you get it) to steal your opponent's finishing move.

Secondary Abilities
Taunt on Turnbuckle: (You know how to do that)
Steal taunt: Triangle+D-Pad to steal your opponent's taunt.

Technecal
Primary Move: Technally Sound
R1+Triangle (having a.... you know) to reverse all of your opponents moves for a limited time.

Secondary Abilities
Fake Irish Whip: O+X
PIT Menuver: Run Towards your opponent & blindside your opponent by pressing X.

Submission
Primary Move: Ultimate Submission
R1+Triangle (you know)(don't know what happens)

Secondary Abilities
Lock Pick: Try to escape a submission at any time to win.

Since you can only pick one of your superstar's fighting styles you can only have one primary move but the secondary abilities of both your superstar's fighting styles!

TIP: Powerhouse + Brawler = WIN!