Lilsparky's Branch of Skillet is still going strong over at WoWAce.com
LSW is still working as well without any issues for me.
On top of that, Lilsparky is also doing a completely new one called Gnomeworks Tradeskill Frame. It's still in alpha phase but it's looking to be a very very promising replacement for Skillet/ATSW etc.
You can also click on Lilsparky's name over at wowace and get the alpha/beta updates of all the mods going
Here's a couple links.
http://www.wowace.com/addons/gnomeworks/
http://www.wowace.com/addons/skillet/
http://www.wowace.com/addons/lil-sparkys-workshop/