Was just about to post a similar topic.
I have the same problem but with serproxy and the following tutorial:http://www.progetto25zero1.com/b/tools/Arduino/
(you might also want to try that one).
What happens is that it appears to succesfully connect:
serproxy says (as soon as I launch the flash):Server Thread Started
server(2) - thread started
However, the Flash animation appears to not receive any data from the Arduino. The port and localhost adres are correct (127.0.0.1 and 5332) because if I change it in Flash, it doesnt even bring serproxy further than 'Waiting for clients'.
Also, Arduino does work since if I unplug it serproxy says: "Failed to open comm port - connection refused".
Ports are opened in Windows' Firewall and I also run Vista 32bit.
I also tried running TinkerProxy with port 5332, port 2 and 9600bits
Any help is greatly appreciated.
EDIT: Oops, my bad, uploaded the wrong program to the Arduino :-?. Forget about my question. Or might this be your problem as well :
? (highly unlikely but ok)