[vexim] broken adminuserchange.php

[Terry]

Thanks for the help chaps but I made the changes and still the same 
error but in the apache error log I get

[Sun Mar 08 20:31:49 2009] [error] [client 80.229.144.50] PHP Fatal 
error:  Call to undefined
method DB_Error::fetchRow() in 
/usr/local/www/welshangler.co.uk/vexim/adminuserchange.php
on line 249, referer: http://welshangler.co.uk/vexim/adminuser.php

My adminuserchange.php
http://www.welshangler.co.uk/adminuserchange.php.txt

If I enable short_open_tag I just get a white page
Maybe if some one could let me have a copy of a working 
adminuserchange.php :)

Thanks
Terry