Here's a very informative sticky that should help you out...
http://www.ball-pythons.net/forums/s...=332195#332195
If the snake has problems shedding there's another sticky for that too.
Don't confuse normal irredecence that you can sometimes see on these snakes (more so on other snake species) with a shed cycle.
Just read the above link and it should take you step by step through the whole process.