I downloaded the TomatoUSB 2.6 VPN build (tomato-K26USB-1.28.9054MIPSR1-beta-vpn3.6.rar), and unzipped. When I try to select the .trx file in the Linksys firmware upgrade webpage, though, it gives me the error "incorrect image file!"
Judging by other posts on the web, it wants a .bin file. Can I just rename the .trx file to .bin and select it without bricking my router, or do I need to get some other file to install TomatoUSB? I notice the default Tomato build comes with .bin files AND a .trx file.