[xwiki-users] Migrating from 3.5 to 5.0.1 with large XAR

Hey all, I inherited an xwiki 3.5 installation that used hsqldb. I want to move to 5.0.1 and mysql. The new instance is up and running and I was able to export a XAR file from the old system. However the XAR file is 184MB in size so the regular import says it is too big. I tried the script here: http://extensions.xwiki.org/xwiki/bin/view/Extension/Large+XAR+Import But it seems the syntax has changed. I tried to replace the <% with {{groovy}} and %> with {{/groovy}} but then get a bunch of errors. Can some one point me to an upgraded version? Is there a better way to do this? Thanks, Erik