Basically, you get-
1) More searches (not limited to 10 in YouTube)
2) Works with iTunes (playlists and music)
3) 1000's of Internet Radio stations
4) Streaming from URL's
5) Unlimited playlists, favorites, and history
6) Free support
7) Streaming ORB from PC (play, download and send photos, video, music to and from PC)

Upload to Flickr
9) Upload to YouTube
10) Play AVC/ H.264 video
11) Play WMV
12) Skins, slideshow transitions, and FLAC audio support
This link lists all the additional stuff you get with the paid version in detail... Be warned... You will have to exit out of it automatically downloading the freeplayer version... I don't have any other links... Sorry...
http://kinoma.com/freeplay/download/
I don't have the paid version... I am happy with the Free version...