I see you helped someone who had exactly the same problems as me so here goes.
I have a live joomla / virtuemart website. I have attempted to use private ssl from comodo (positive ssl). However I get the following errors:
1. In internet explorer 8, when say my checkout page changes to http, that warning turns up about secure and non secure items pops up. When I click on do not show unsecure image, the padlock disappears (so I am unable to view that page using https).
2. When I click on show unsecure image, the padlock stays? but the page gets stripped of all my customisation.
3. In firefox 14.0.1, the page I am on goes into https but certains features are stripped of customisation. Also the gray padlock flashes briefly then disappears. I am also supposed to get a blue bar but this is not showing in the browser.
Would you be able to fix this for me. If so, please let me know how much? Thanks for your time.