You might try the wayback machine.
[Link: archive.org]Just search for PadOne and look about 4 links in.
PadOne Music control for Pronto
Specially tuned for the Philips Pronto model TSU9600/TSU9400
The perfect Home Controller has become even better! This PC software package enables the Pronto TSU9600/TSU9400 system to do full music management from your PC with
Windows XP/ Vista (32bit) and Media Center Edition 2005.Not sure you will even want to bother at this time.