Yup, that's what I use.
Go to
http://www.dd-wrt.com/dd-wrtv2/downloads.php
then click on the link to
dd-wrt.v23 SP2 and download the
dd-wrt.v23_sp2_micro.zip file.
The important thing is to upgrade from the router gui using the 'micro-generic' file contained within the zip.
HTH
Glad its went well.
Cheers