I have moved all the textures from the RezLoaded texture pack into my texture pack folder, but cant seem to get it to load in game. Is there a problem with the file of do I need to do anything specific?

This is a file problem. This texture pack requires the download of MC patcher. Either that of the texture pack is infected. u can still use your Minecraft account on another computer if u want to use another one.

This is probably a problem with your little file