RE: a simple map module:
you don't need map module to display a map.
other modules, like text/html module will do just fine >>
1. create a text/html
2. go to edit source
3. go to google maps and enter your desired postcode (select the 'link to this page' and copy the iFrame)
4. enter the iFrame details in the edit source area (step 2)
this way you can manipulate the module as you like.
regards,
mark richardson