If you think that this is a new problem with the latest LW, you can go to this other forum & post there: LimeWire Forums

Don't forget that each time you open LW, you'll connect to diffferent users for searching & so your results can vary a lot.

You could also try searching for artist name - m4a, or song title - m4a.

If you really don't want to see any mp3 results, you can add .mp3 to your keyword filter (tools > options > filters > keyword).

It seems to be fixed...?
I can download both types of files and can open them in Itunes once itunes alerted me that it was not my default player...must have been a kink when i switched back to IE...duh.
thank you for your reply and hope this helps someone!