Your FAQ specifically states that you need Itunes to scrobble your Ipod. However I seem to find a small number of posts that seem to claim that they scrobble with only the use of ml_Ipod. I'd love to have this functionality as well however I can find out how to do this.
I use Windows XP and the newest version of Winamp and a manually installed ml_Ipod plugin.
If I ask the last.fm tool (Help>Diagnostics>Ipod Scrobbling) to scrobble manually it gives the following error message: [090514 13:55:15] "090514 13:55:15" - "1688" - LastFmApplication::parseCommand ( 1002 ) - L4 "container://Notification/Twiddly/Started" [090514 13:55:15] LastFmApplication::onControlRequest()988: L3 clientRequest (old instance): container://Notification/Twiddly/Error/Failed_to_get_hold_of_iTunes_instance_via_COM
Ipod scrobbling using Winamp's ML_Ipod plugin