After much trouble I finally fixed it for my PC anyway.
If you're getting an error about failing to load the plugins, and then satourne crashing every time you select one, just try this.
Put all of your satourne files in a folder that uses a simple name (try a folder called Satourne, instead of Satourne-v10p for example)
also make sure all folders above it in the path have simple names.
And just in case that's not understood very well, here's my example.
I had it placed here:
C:\Documents and Settings\Serath.DARK-Y6Y1194FTX\Desktop\satourne-v10p\satourne\
Always crashed after choosing a plugin
Now I have it as:
E:\Games\Emulation\Satourne\
That makes it work perfectly.
Now I'm off to try some games
Hope this helps someone.