I don't know if this post belongs here, but I'm going to give it a go...
I suggest that the Theme's section of Crackberry now also have a sub-section of OS 6 themes. I was just looking through the forum for 9650 Theme's and it seems to me that many people don't necessarily post whether or not their recently uploaded theme works on OS 6 or not. I can imagine this is going to be confusing to many people. Not to mention, a huge waste of time for someone looking specifically for OS 6 themes.
I don't think it would require much work to implement. When you enter into 9650 Themes there would be 2 sub-forums. "OS 6 Themes" and "OS 5 Themes". It could be as simple as that.