We just updated to the latest version of XenForo and v2.2 included a lot of updates so a few things might look off at the moment. We're working through them and please let us know if you spot something. Thanks!
The save will be in the old xbox format... Under the xplorer360 used with Xsata, you'll find the savefile exactly the same as under the old box, but it resides under drive3 - compability - xbox1.... But as I said it will be as a "KONAMI-XBOX-PES5OPT.xsv" file...