Madeleine,
my advice for whats its worth....i'd ask Franz if he's employeed a lawyer or anyone else to look into this and if so, try consulting with that Filipino lawyer and provide him your info. maybe there is something already working. If not, I'd try to find out who cashed your money gram and where it was cashed. See if you can find a name or address. If its in the Philippines, try contacting the Philippines Consultant there in your home country and see if there is anything they can recommend or take action on. U never know, they could already be investigating this guy in the PI for the same activity.??? Other than that, i can't recommend any other extreme activity although who ever this guy is I hope he meets an untimely demise for ripping off unsuspecting good folks like yourself.
A name and address of who cashed your money would definately help; i doubt who ever it is has the resources to come half way around the world to SA. I'm unsure of how he/she could exploit a copy of ur passport. Here in the USA, if someone had your passport possibily they could get a Social Security Number (our national citizen ID #), and your address it could be used to create false credit card accounts and identify theft. Not sure about South African passports. I'm not sure i'd let it go yet until you determine if you could find out any info about who cashed ur money gram and where. just my thoughts.
ps...if u don't mind me asking...what is the address you have on this Allen. You can send it to me my private message if u like.