Hi Lea,
another good hack...I just tried it: it gives me the same db error as the one above if I enable the "Show custom fields stats?" and put no value in the "Custom profile fields to display".
The other strange thing I noticed is that in the profilestats.php code, you refer to $vbulletin->options['eps_customfields'] in the code, but after importing the .xml, that field is called $vbulletin->options['eft_customfields'], is this ok for you?
I'll wait for the fixed version...and thanks again for another one...
Keep up the good work.