Hello,
1) being unable to do online upgrade is caused by security setting on your server (it restricts remote connections to other servers); in such cases, you need to use "Upgrade from installation package"
2) as regards your other question, you wrote you have copied configuration to paid version? How?
I think you simply did not configure your templates/objects correctly and they have no bookable periods set. (if you have copied something from the free version, maybe it was not copied in full)
So simply review all the settings and make sure you have the bookable periods properly defined in your current version.
3) "Also the description box shows that it has been highlighted in blue, which this is not the case, how can I fix these?" -> Sorry I do not understand what you mean by this. What description box you have in mind?
One more note... you have purchased a version without guaranteed support time. For more expensive Pro version, the guaranteed time is 2 business days. We had national holiday on Friday, so it was not a business day and my colleagues has informed you about this. So in fact, this is the 3rd business day now. I think that it is still acceptable. Anyway, if you are not happy about that, you have option to purchase priority support with 1-business day response time at
www.artio.net/e-shop/support-services