Contemplate issues after moving site to new server

I've just moved my site from a Windows/XAMPP setup to a CentOS LAMP server. Everything is up and running fine except when the contemplate module is running - it does weird things with node and teaser views. I originally posted this as a contemplate issue, but realized that this is best posted in the forums. More details are available there: http://drupal.org/node/86379

Setup:

centos 4.3, apache: 2.0.52, mysql: 4.1.20, php: 4.3.9, drupal: 4.7.3
contemplate: 1.5 2006/06/22
other non-core modules: there are many, but I believe the relevant ones are cck, imagefield, imagecache, views
themes: spreadfirefox, bluemarine

Summary:

if contemplate is enabled, using spreadfirefox theme:
- able to access admin > content > templates > edit (node type in question)
- views which generate teaser view are ok (including img src)
- full node view's img and a tags point to an non-existent url, images are broken, links go to 404
-- here's the weird part: if I look at the page source from my browser on full node view, the img src values are correct - but viewed from the browser the are incorrect - this applies to both IE, Firefox and Opera (cache and cookies cleared on browsers)

if contemplate is enabled, using bluemarine theme:
- unable to access edit template page, instead get an un-rendered view of the body of one node, drupal interface is not shown at all
- views which generate teaser view render the same as edit template page, but with a different node
- full node view's img and a tags point to an non-existent url, images are broken, links go to 404

if contemplate is disabled, all themes/views work normally.

I've updated apache, php, and mysql to their latest versions. Any help is appreciated.

Cheers,

Ian