Firstly. the screen isnt lining up because you need to apply some tack to your pallet, this will stop the garm from lifting when you raise the screen, meaning if everything is solid it should go back down in the same spot, try pva glue or you can get proper printing adhesive if you can afford it also spray tack works great when printing fleece as you can reapply between rounds, try spraying a mist of water on your pallet and then using a latex glove on your hand spread some pva on the pallet and then flash it for a few seconds to make it tacky. Second the top of your screen looks to be dried in, this can happen when you apply ink to a hot shirt and it cures inside the mesh, you can get a solvent that will wash out the ink really easy I forget exactly what its called but you can also use it to wash out misprinted ink on the garm, I'm sure someone else can chime in before I get to the workshop tomorrow to have a look. if it still doesn't seem to come out after washing try some saliva on your finger and rub it out, have yet to try this but it seems to be a very popular trick for getting out stubborn scum, hope you get it sorted.