Kevinz, have you tried install the ipkg OpenWRT package version to the DD-WRT firmware using the "Firmware Modification Kit"? (http://www.dd-wrt.com/wiki/index.php/Development
If not, i will be glad testing this procedure on my own WRT54g.
Sorry if this question sounds "naive", but I'm DD-WRT user and I prefer DD-WRT rather than Tomatoe firmware.
Thanks in advance for your answer,