Check the Image Upload , config your DD-WRT like that , Then Download Filezilla software
>install it > when it ask for IP address , enter 192.168.1.1 [IP of ur ASUS ROUTER]
Username: User
Password : 1234 <-------- I shown in Image , if you want to change password , edit it in dd-wrt gui as shown in image
=======================================
ftp://www.dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2012/
I didnt note exactly on which build swap was working , but i think its one of the following build
06-06-12-r19327 06-06-2012 00:00:00
06-08-12-r19342 08-06-2012 00:00:00
Any1 way even with Latest version + Transmission + pyLoad http/ftp/ Web GUI downloader , still i have ~ 5MB ram remaning , May be because i limited max active Transmission torrent Upload and download , My Active Download is 1 Torrent at a time and Upload is 2