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Warning: Parameter 1 to JHTMLGrid::access() expected to be a reference, value given in C:\wamp\www\site2\libraries\joomla\html\html.php on line 87

i cant access menus, and so many other materials to start editing my joomla

I expect you are on php 5.3 but are using a Joomla version less then 1.5.15. Joomla 1.5.15 is the only version that works with php 5.3. Upgrade your joomla.