Can't connect to mssql with wamp 2.2e 64bit..

i tried downloading and enabling each of the drivers to connect php to mssql. i tried putting sqlsrv drivers in ext folder and enabling it in php.ini but still not working. cannot find sqlsrv_connect function. also installing microsoft native client 64bit does not solve my prob.

have u used the latest wamp 2.2e and connect to mssql server? how did you do that?..