What the heck am I doing wrong?!?!

[Fox]

I am incredibly frustrated right now. I am new to saltwater and have been waiting for my tank to cycle since Dec. 29th. I have gone from doing several tests a week to weekly tests because the tank just isn't cycling. I have seen my ammonia spike twice only to have it return to 0.25 and my nitrite level is still at 0.05...I have even taken my water to Big Al's for fear that my test kit is having issues.

I have about 50 lbs of live rock in the 33 gal tank and I know that nothing happens fast in a saltwater tank but I also know that it should only take 4-6 weeks for the tank to cycle and I am approaching my 8th week.

What the heck could I possibly be doing wrong???