Hmm, did you fill in your phpbb prefix correctly?
Honestly, I'm stumped. Basically, that error is like 300 lines away from the code you changed.
$query = "show tables like '{$dbprefix}users%'";
$sth = mysql_query($query,$dbhimport);
list($check) = mysql_fetch_array($sth);
if (!$check) {
echo "Unable to query from the {$dbprefix}Users table, it doesn't appear your import database settings are correct.";
exit;
}
It just checks to see if the users table exists, so if you have your prefix at phpbb_ I can't see why it would fail.
