As a side note, I'm getting odd graphical grossness on the edges of my texture (also shows this in s4s) I'm not certain where the pixelation or these are coming form since I'm working directly off the game's texture.
(Also realized I forgot to say I'm using the latest version of s4s, as I had downloaded it a few hours before the original post)
I was looking at your package, checking if it was restricted for opposite genders- which it wasn't, but I was just look in the warehouse and noticed you had geometry in the .package which didn't make sense because it's just a recolour. Anyway, I recreated your recolour but in s4studio, I used 'Add CAS Part Swatch' and it worked! So, if you want to do this again in future, make sure you use that option, and it should work. Here's the link of one I made - simfileshare.net/download/319575/
If you are having problems seeing the CAPTCHA, please clear your browser's cache and cookies and ensure that you do not have any browser addons or extensions that interfere with the display of the CAPTCHA. Then, close the CAPTCHA window and click on the register button to open the CAPTCHA again.