Greetings - Please help if you can

Greetings to everyone in the seller's guild.
I am not a member, and the group is set to invite only, so I thought I would come here.
I was told that you would be the best group to help.

Earlier today I realized someone used my item to make another, and is selling it in her store.
I am not aloud to name names I think so here is the image:
http://forums.secondlife.com/attachment.php?attachmentid=13972

That tee is totally mine. I do not mean the logo, I mean the base.
What I did, since I did not want to accuse her before being sure it, went to buy it on an alt, sent it to elka, then GL Intercepted her tee. Then I opened my tee and her tee together in Photoshop and overlapped them...
They fit 100% perfectly. So there is a proof.

For the moment what I want from her is items taken down and public apology.
BUT, I guess you guys can also help by advising all merchants in your group to ban her and all.

I do not sell lots of items in my store, and also, everything is 100% hand drawn from scratch. Not that I think that copying something photosourced is not bad, but just, I could happen if two people use same site. However, for me that's a huge slap in the face, since I draw everything myself. She literally used my pixels.

If you do not support thievery, please ban this person and contact me if you want the pictures of the proofs. Thanks.