First ride it about 100 miles, to make sure the new pads are bedded in. Often this will improve things greatly.
After that and if your wheel isn't moving freely, you need to fix your caliper(s). I would first remove one at a time to make sure they both rub - not just one of them.
Easiest start is to get one at a time off, remove pads, put a c-clamp on one piston, then pull brake lever to push out the other one as far as you can without it popping out (carefully). Then clean the outside surface of the piston as well as possible using brake cleaner and maybe cotton tips or similar and compressed air. Then push the piston back in with another c-clamp, leave this one on, remove the other c-clamp and repeat cleaning operation on the second piston. Then push it all the way back in, refit pads and caliper and see if that helps. If good then you're done for now. If not you'll need to get new seals and replace them, or as mentioned b4, talk to Sean Morley as you may be able to get an exchange from him for a decent price and not have to do the work yourself.
IMPORTANT - if you're going to do this, make sure to keep a close eye on the fluid level in the M/C reservoir!! if it goes too low you will get air in the system. If it goes to high it will spill and eats paintwork and most finishes for breakfast! Always a good idea to protect all parts below the M/C and have plenty of brake fluid to top up and a syringe to suck it out as needed.
Hope this helps..