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what version of php are you using?
it would probably be easier to ask your host to check their config settings in php.ini and set allow_call_time_pass_reference to true
otherwise it would mean editing the files and removing the & from the functions..
ie line 63 & 64 of idgobject:
&$db change to just $db
you'd have to do this for probably many other files aswell.. but that would probably cause other problems depending on the php version again.