Ok, well whatever I did now. It appears to be working fine. It wasn't disabled in the addons list in game. It just wasn't showing there altogether. Also, it was downloaded and extracted to the correct WoW addon folder so I am not sure what happen but it is working fine now. I literally didn't do anything differently.
I am running Windows 7 and I did as you instructed above, but I am still having the same issue with oQueue not showing up. It seems to have fix the windows error crashing Icebox.
I have everything set to Windowed-Full-Screen mode and everything was working fine till yesterday, now when I load into the WoW world Icebox crashes. I cannot get OQueue to work now either. I have all files in the WoW addon folder and extracted but nothing shows up now in game.