PDMWorks and Revisions

Hi

I don't know much about PDMWorks at this stage, so sorry if it's astupid question.

I would like to know how PDMWorks handles previous/older revisionsof drawings? Can I, for instance, open up a previous revisiondrawing without the drawing showing the current version of themodel part/assembly? This is a problem with Solidworks and we arethinking of implementing the PDMWorks software to better controlthe drawings in our system.

Is there a good beginners guide to the software somewhere online?

Thanks.SolidworksWorkgroup Pdm