Self service portal

Is it possible to setup the self service site so users can unlock/reset account/password without having an Access Gateway. We have a xenapp 6 environment and use WI 5.3. Also, is there any reason that we should upgrade to WI 5.4, aside from appearance of the login screen?
Comments
If you're looking to upgrade from WI, I would go ahead and look at Storefront. I know Citrix just extended support for WI several more years, but it's only because they can't tear people away from it as quickly as they'd like. Unless there's something about XA6/SF compatibility that I'm missing. I work more on the desktop side, so that's possible.
AllowUserPasswordChange=Always
AllowUserPasswordReset=On
Make sure you remove the # symbol at the beginning of each entry.
http://support.citrix.com/proddocs/topic/web-interface-impington/wi-configure-account-self-service-gransden.html