What version is it? I just d/l 257 from FTATALK, but when you look at the version number from the menu, it says 2.50. I think someone is just renaming an older version. It works though.
FTATALK is a trusted source. What version for SV4000 is ftaforall advertising? If you load it, what version is the receiver actually displaying when you look it up in the Menu options.