Thank you for replying, Ishtara.
Texturesetc was created 7 days ago to represent the work of my friend and I. We decided to open a small shop together in SL and figured this was the best way to do it. We're both very new to SL, but we're also very familiared with meshing and texturing because we used to create custom content for other games (such as Sims 2 and Sims 3). Having said that, we still have tons of noob questions and sharing our creations, so any help is appreciated.
Indeed I have uploaded the mesh with my avatar and then transfered it to texturesetc, so maybe that is the issue? I've just finished taking the Mesh IP tutorial, but the option seems to remain greyed out