Steam skin help with updating some code

i don't know how to work the code on this one, and i don't know how hard it is to fix this. But i have a skin that's a bit outdated which makes some UI elements weird:

http://ift.tt/1FheJaP

http://ift.tt/1FheKvh

http://ift.tt/1FheM6d

The Steam Skin: http://ift.tt/1FheKvj

Kind Regards

Teletha / RaW D Coy

Steam skin help with updating some code