I want to try my hand at making a skin for SEN, but I don't know the format or guidelines I need to follow to make one. Can someone that knows how to make a skin for SEN explain the formatting and stuff? Thanks.

Making skins may be senseless right now but here is how it works:
The header is completly up to you, except the navigation format (they always are dropdowns). The rest is CSS controlled. I will provide you with the epic skin-files so you can edit them.

Thanks for the quick and helpful response. I can't wait to get started.

Can I have the new files for making skins for this new version of SEN?

Post them in a topic or sticky somewhere pl0x. Or are they the old ones you gave me along time ago?

Once the system is 100% done (which still isn't the case, but soon) I will make a sticky thread, good idea

PROTIP: if you're good enough at HTML and CSS, the drop-downs, too, can be CSS-controlled. Turtle's using the trick right now.