Okay on a 2005 -2007 model to remove the tank....
Remove tank bolt near the handlebars.
Remove the seat.
Remove both side covers. (one bolt hidden by the seat, one bolt where your knees go. two plastic clips seat end, one plastic clip by your knees)
Remove the rear tank bolt and nut.
Pull off the two vacuum hoses (note which one goes where) They are on the left hand side under the tank where your knee would go. Try raising the tank an inch to get your hands in.
Next is the fuel pump electrical connection. Right hand side, underneath the tank, also where a knee would go - it's a white one. Tricky this one.
Next remove fuel line, you have to push in on further into the steel pipe, squeeze it with two fingers then pull. It's vacuum seal, so don't worry about a bit of fuel leaking out at first.
That's it, lift it off, rear first. It'll be heavy if there's a lot of fuel in it.
Don't lose the rubber mount on the front of the tank.
Another trick once you've got all the bolts out, is to prop the rear of the tank up with a bit of wood to enable you to get your hands in there for the pipes and connector.
The fuel pump is inside of the tank, as you will see once you've got it off.
hth