I have downloaded a theme, and trying to install, but can't seem to find the 0000003 folder. Been looking for tutorials, some people are saying you can add the folder. But not too sure on how to go about doing that.

Yea you can simply create the folder. You can even create the folder in windows and then import the whole folder using xtaf

Spiffy Covers | Crochet By Allie | Spiffy Network

Just Use Horizon It will do the work for You

Tutorial
http://www.youtube.com/watch?v=NMNY_ynCuRQ

Horizon Download
http://www.xboxmb.com/horizon/

This Now Requires a 64bit Computer
Sorry Horizon is no longer Supported on 32bit

Hope This Helps And Goodluck