[Strzelecki]

Right, what you need to do is use the gear shift for the rear gear mech to shift it into the highest gear (smallest sprocket at the rear when the whell is on normally). Loosen the quick release axel on the rear wheel (or the nuts if it's a solid axel). Pull the rear mech gear cage that holds the two jockey wheels (small cogs) up towards the bottom chainstay (the part of the frame that goes from where the pedals rotate to the back wheel) and then using the other hand pull the wheel upwards or move the rear of the bike downwardsso that is slots into the frame. Let go of the rear gears, tighten up the quick release or axel nut and off you go. I can take photos if you still need them!