in west mids they have scrapped the bleep test as part of their selection process now. When i first applied in 2001 (i got in the second time i applied) i had to do it then, they just keep you going till you do the required level which was the same level as your having to do. I found it ok, but im a natural runner anyway. The reason the west nids scrapped it is because its discriminative to body shapes. It was designed for athletes and its all about getting the right turn, and using your hips.
We do it from time to time at work and if i remember rightly at level 6 i was only just starting to jog. Pace yourself and try to time it so you turn on the line for the beep. Its worth having a go somewhere doing shuttle runs just to practice the turn and get used to the stop start side of it.
I cant remember how many shuttles there are to a level, i've a feeling its 10 though (so thats there, and back 5times). As for time, obviously with each level getting faster the levels go quicker, the first few are boring anyway!
how far have you been running each night? Or how long? Sounds like you've been putting the training in, and its worth it because training school is bloody hard work if yours is anything like ours was!
Hope that helps buddy,
Matt.