[M2] versions of libs?

Hi, I'm working on the Maven2 build and I'm currently adding the dependencies and ensuring they are present on ibiblio and pushing them if they're not, etc. There are several libs in trunk/libs that do not have version attached to the jar name. Could someone in the know rename them with version information or tell me the version so that I can rename them and add them as POM dependency? Also, are you sure there is a Servlet API 2.4? The most recent version I have found is servletapi-2.4-public_draft.jar (or servletapi-2.4-20040521.jar). See http://ibiblio.org/maven2/servletapi/servletapi/. I don't think the 2.4 API has been released yet. Let me know if this is correct or not. Thanks a lot -Vincent