This is probably the most important thing, I'm guessing he was signed up during Houllier's reign? If so he must be on somewhere between £20-25k pw, and he hasn't done anything to deserve £25k+ imo, which is most likely what he'd ask for if he asked for an increase and the club probably think the same if he's not starting every week. Even if Albrighton wanted the same wages, I'd imagine the club would try barter him down a bit.
20k would not suprise me. From what I remember he had a good start under Mcdonald and was a regular when Houllier joined so to sign the "the next David Beckham" for 20k wouldn't shock me.