Windows 7: Windows Media player not seeing music.

Just replaced my old XP media PC with a Lenovo M92p running Win 7 64 bit. I copied across all the Music folders from the old PC into the Music Library and I can play them by clicking on any track but Windows Media Player has not found and indexed them. I cannot find a Search and Index type function.
Is there any way to get this to happen ?

Awesome little piece of hardware btw, perfect for a discreet media unit in the lounge.

Hi Zero. Not sure if this reply is too late. Anyway, open the media player, click Orgainise, Manage Libraries, then Music. When the box comes up, click on My Music. Click on Add. This makes sure the Music Library on th hard drive is monitored by the Media Player. Hope it goes ok. TC. Ken.