Can somebody help me?

I've been searching for my save files for quite a while now. I have a modded xbox (PAL) and I use FTP to access the XBOX.

My problem is, that I have no idea what the save file looks like or where I can find it. I found something on www.ps2savetools saying that it's named GTA_SA.xsv, but I can't find it. I'm playing the PAL version, no idea if that makes a difference.

Any ideas?