I've just received my first graphic yesterday, it came all the way from Connecticut to Mexico City, but it came without any film holder... It has a graflock back but no holders, I don't know what to do, please advice me if any 4x5 film holder fits, I have a fidelity and a riteway 4x5 fh from another view camera I had, I also bought the manual but it has no related info about using other film holders.
Somebody help me please, I bought it via internet, it's in great shape but I'm facing

The two holders you have should work, as well as these: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2915090957&category=29979
They are plentiful, if all you want is cut film holders. 120 roll film adapters are also available.