ive recently got to lvl 85, doing heroics etc, but my dps is terrible to say the least an i just dont know why? I just simply want to know..: what spells should i use and in what order,, what stats should i have on my armour and the bonuses crit, hit etc. and anything else i may need to know, coz its gettin me frustrated now.. thanks for help

you didnt say your spec, i assume its destruction ?

you need a lot of HIT first, then after that Spellpower then HASTE - haste is very important.

check this out

http://elitistjerks.com/f80/

scroll down below and select whether you are demonlogy, destruction or affliction lock

and you can also do this:

http://elitistjerks.com/f80/t110222-simulationcraft_warlocks_cataclysm_edition_4_0_6_4 _1_a/

run simulation craft selecting ur toon name, server and it will tell you what needs to be re-gemmed or upgraded