Programatically create site under sharepoint server 2007 using web service

I was working on the integration between E4SE and sharepoint service 3.0(we actually use sharepoint server 2007). the integration involves providing web service for site creation and team members update. Although we got an older version that works with WSS 2.0, the source code is missing! I re-established the source code and make it working with WSS 3.0. Due to the limitation of sharepoint service, a customized sharepoint web service is also used. Will release the code if anyone interested.