how can i change my head. i see people with different heads on youtube all the time

If you have purchased a head texture you can upload it here. http://forums.toribash.com/tori_textures.php
That will make it visible on your toribashian.

Also if you don't have a head texture you can buy it here. -> http://forums.toribash.com/tori_shop.php?cid=56

And yes, it does cost 10k toricredits.

Edit: So it is 2k not 10k. Not sure why I thought 10k...

well you need to buy a head texture first which is 20k tc
edit:damn you marcus you just beat me

The old head texture was 20k, the new one is 2k.