problem in installing and configrating php.

I am using IIS 7.5 and recently installed php and mysql support for IIS. Today I used phpmyadmin to access mysql and other stff Bt when I ran it I found a few errors .. they r as following Server: localhost <http://mac/phpmyadmin/main.php?token=e4588341a79efa127cf73d8a447f31a3> $cfg['Servers'][$i]['pmadb'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#pmadb> ] $cfg['Servers'][$i]['relation'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#relation> ] General relation features: Disabled $cfg['Servers'][$i]['table_info'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#table_info> ] Display Features: Disabled $cfg['Servers'][$i]['table_coords'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#table_coords> ] $cfg['Servers'][$i]['pdf_pages'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#table_coords> ] Creation of PDFs: Disabled $cfg['Servers'][$i]['column_info'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#col_com> ] Displaying Column Comments: Disabled Browser transformation: Disabled $cfg['Servers'][$i]['bookmarktable'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#bookmark> ] Bookmarked SQL query: Disabled $cfg['Servers'][$i]['history'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#history> ] SQL history: Disabled $cfg['Servers'][$i]['designer_coords'] ... not OK [ Documentation <http://mac/phpmyadmin/Documentation.html#designer_coords> ] Designer: Disabled And even getting an error "Cannot load <http://php.net/mcrypt> mcrypt extension. Please check your PHP configuration." Plz tell me how can I correct all the configration. Thanks I am new to it so I don't knoe.