Ahh, I seem to have solved my problem, instead of using Datasource.py I put a section like this in to my abe.conf file.
datadir += [{
"dirname" : "/root/.feathercoin",
"chain" : "FeatherCoin",
"code3" : "FTC",
"address_version" : "u000e",
"magic" : "u00fbu00c0u00b6u00db"
}]
It is now building the DB.