Migrating from 0.9.840 to 1.0b2

Hello everyone. I am having a problem moving our wiki data from xWiki 0.9.840 to the new 1.0 beta 2 wiki. I am using Tomcat and PostgreSQL 8.1 I receive the following error when going to: http://localhost:8080/xwiki/bin/view/Main/WebHome javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3202 in 3: Exception while reading document XWiki.XWikiPreferences Wrapped Exception: could not load an entity: [com.xpn.xwiki.doc.XWikiDocument#104408758] org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121) -- AND -- com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3202 in 3: Exception while reading document XWiki.XWikiPreferences Wrapped Exception: could not load an entity: [com.xpn.xwiki.doc.XWikiDocument#104408758] com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:223) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:303) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:121) Clearly just pointing with the new XWiki to the old DB doesn't work. Thats basically what I've done. Also for days now I've been trying different things and obviously no luck. I am working on a dummy system to prepare the migration before doing the actual thing. On my dummy system the old wiki works as the original. Help would be appreciated! Thanks