With the life cycle of White Russian coming to an end, and the advancement in development seeming to dry out a bit in favor of Kamikaze, some people have released a rework of WebIf, called WebIf^2 (downloadable at http://x-wrt.org/)...
Currently, the interface only works on White Russian RC5, RC6 and 0.9 (at time of writing not yet released), but they are working on Kamikaze support - the main reason for lack of support is the difference between how configuration is handled between the two major builds.
The new web-interface can be installed without a hitch on your already existing OpenWRT install (provided it's one of the supported releases), and replaces the current WebIf version, with ...