Silhouette Mirage: NTSC to PAL patch

[shienryu]

Hello, I have a problem with the games in the subject: I live in Italy, and my PSX system uses PAL video mode. The problem is that I have Silhouette Mirage, but it runs in NTSC mode. I can't use RGB cable, so I get black/white pictures. I solved the problem for other games making an ISO of the original CD and applying a patch to make it run in PAL mode, but I can't find a patch for Silhouette Mirage...
Please, is there anyone who can tell me if there is a patch for this game somewhere? I tried Megagames, but I haven't found it.
Thanks in advance.

Daigo