I had to switch off the category link in configuration to make mine work.

Only on one site have I had this problem though - so I am guesing it is server configuration

I have recently purchased the virtuemart extension and tried using Artio with an established site and virtuemart.

Having looked around am I correct in saying that Artio will not work with https secure urls?

SO far it hasn't worked on my clients site.

Do I have to or can I pruchase something else that will make it work?

If I paid for support - can you guarantee to make it work? if so how much?