im guessing you may need to start again by the sounds of it... go to the local chemist buy a bottle of acetone.... stick the wheels in a food container ( type where the lid seals well ) pour in a bit of acetone ( and dont breath it in ! ) seal lid shake it up and leave for a couple days.... glue should pretty much dissolve and you can clean up the wheels etc and start again...... i think some people use a load more acetone and dunk them in but ive found it works this way. the model shops sell rubber bands you can buy to hold the tyre rubber down evenly all the way round. also ive been using cheap pound shop glue thats a bit too thick it works but you have to take a bit more care when doing it...( having said that i lost a tyre on sunday!
)the proper glue is much thinner and easier to apply.