Mith,
I think we have had some kind of miscommunication.
I got the impression that you were unable to produce a transparent PNG files. So you asked me "how do I get this file to you"? So that's why I asked you to post a Photoshop PSD file with the transparency worked out exactly how you want it. Then it is 1 easy step for me to make a transparent PNG in Photoshop and post it here on this thread. If you were to post a "flat" PNG file, then it would take a LOT of work to try to make it transparent again.
In other words, gimme the best you can get, and I'll do the last little step necessary.
If I am misunderstand and you ARE able to create transparent PNG files, then just post the PNG file to this thread using the Attachment feature as you have already been doing.
You are welcome to also post a snapshot of how the logo looks on the crystal as a Preview.