blue, if you are refering to seeing the font move as you adjust.......that just wont happen in skinstudio, you wont see the results until after you save and reapply in wb. other suggestions......could be the font colour? rendering it impossible to see......or Vstylers suggestion is a good one too......... if its not in the right position, you wont see it either.
As for the skin being locked.....i dont know about that one, ive never experimented with a locked skin, (shrugs) you will find the font properties under the 'userpane' section like i sugested before, take yr time to follow every step i gave you, and you will eventually find it. im not sure if you are using skin studio 5 or 6, im giving advice for 5, not 6.
You can also disable the piccy in the userpane too.......(an afterthought i thought id add..)