Nice way to hijack a thread, warren.
To find out what model and software version you have, create a new email or memo pad entry and type 'myver' (no quotes or spaces). After you type that and hit the space bar it will change to show your model and version (like: 7100i/4.1.0.136)
As for the original question about the filter, sorry, no answer to that, 13bravo.