WARNING: BETA VERSION
TRY AT YOUR OWN RISK!
Changelog: (non official and not for sure)
* Fixed Stealth Firewall (FTP could not connect from WAN)
* Fixed uPnP router hanged in some particular settings
* Fixed PPTP thing (not sure but i think so)
* Ripped some other things from 1.7.5.6CR2
you can find the download at: http://files.wl500g.info/asus/wl500g...1.7.5.7_en.zip