Failed upgrade

Ok, so I have made backup of my 2.07 cart, imported backup to newly installed 2.07 cart on localhost. All upgrade went smoothly till 2.0.12-2.0.13.



Now front end is closed, admin is not accessible, error I get is following:




[QUOTE]Warning: simplexml_load_string() [function.simplexml-load-string]: Entity: line 2: parser error : AttValue: " or ’ expected in C:\wamp\www\controllers\admin\init.php on line 73



Warning: simplexml_load_string() [function.simplexml-load-string]:


Can I somehow revert changes?







ends with


[QUOTE]

Warning: simplexml_load_string() [function.simplexml-load-string]: ^ in C:\wamp\www\controllers\admin\init.php on line 73



Warning: Invalid argument supplied for foreach() in C:\wamp\www\controllers\admin\init.php on line 102



Fatal error: Call to a member function xpath() on a non-object in C:\wamp\www\controllers\admin\init.php on line 174[/QUOTE]



What do I do now?



Basically all I need just to upgrade my database and restore upgraded DB to newly installed cart 2.1.2

Problem occured on PHP 5.3 wamp server. Did upgrade once again with PHP 4.3, Apache 2.0 and all went smoothly.