Fedora core 3 4 6? in trixbox1.2 ?

[Richard \(Rogers\)]

Good morning,
 
Would anyone know which version of Fedora core would be right for
Trixbox 1.2?
I know TB1.2 has centOS4.4 but not sure which Fedora core it corresponds
to?
I need to install a driver which is available only for FC3,4 and 6 and
not sure which one to use.
 
Any suggestion would be appreciated.
 
Thanks,
Richard