crankd bolts screw into the bottom bracket and are a standard sizing, there are 3 types (excluding external bb) the basic hex bolt for cheepo bikes, a normal square tappered style bolt, and a bolt for an isis/octalink bottom bracket, you can get the bolt at your lbs fore pretty dang cheep, and since your are missing the bolt anyway you could justget some self extracting bolts then you wouldn't need a special tool to pull the cranks.
i wouldn't recoment using an autmotive pulley puller, i feel like you might damage somthin prolly be fine but a crank puller is like 12 bucks or self extracting bolts are even less, they have a special part that threads into the crank arm and then the bolt threads into the bb like normal, so when you unscrew the bolt stays in the crank arms but the arms come off the bike, basically the bolt pushes on the cap piece thats threaded into the crank arms
why do you need them off? if its a bottom bracket problem you need a special tool that i assume you don't have since you don't have a crank puller
as for the front derail thats pretty easy i wouldn't say cakewalk, but its not a big deal, what is harder is getting the cable tensoin reset. For the FD to line it up what you want is it to be strait inline with the rings, and the bottom of the derail to be 1-2mm from the teeth of the big ring.
Last edited by sirtigersalot; 01-22-09 at 10:32 PM.