Just wrote this little patch today to allow anyone to set their own starting XP for SOA and ToB. THe problem is I can only test it on my own .exe which is the ToB UK version.
I need people to test it for plain SoA UK version as well as ToB and SoA USA, Australia etc. versions.
The reason editing your starting XP is not in any editing utils is because you need to edit the game's .exe file. Nothing should go wrong but just in case, make a backup of BGMain.exe before you start. The worst that could happen is that you need to restore this backup.
So, if you can spare 5 minutes, please get it at:
http://vaskez.tripod.com/Files/XPPatcher.zip