When configuring Outlook Connector in the deployment wizard, the only difference with using Communication Express as backend server is, set URL of ABS in deployment wizard as: /iwc/svc, instead of /uwc.
Easy no ? I found that as well on the Outlook Connector Release Notes wiki, in the comment section: http://wikis.sun.com/display/CommSuite/Connector+for+Microsoft+Outlook+7.3+Release+Notes.