First of all, thanks for this great application!
I managed to control iTunes skip forward and skip backward (e.g. with 5 secs) with an Apple Script (which I couldn't do as a Service: sometime it was working but mostly isn't :) )
The script is:
tell application "iTunes"
if player state is stopped then return
set player position to (get player position) + 5
on error errMsg number errNum
display alert errMsg & return & return & "Error number" & errNum buttons "Cancel"
I assigned F17 to it and all is working fine, but I miss 1 thing: when I hold down F17 I'd want the script to be fired up frequently until I release the key. How can I achieve this?