Looking help with virtuemart and SEO

[depika]

Hi I used to make joomla sites with virtuemart but for 5+ years I have concentrated on other things.
I am trying now to make a website where I can sell products.
I have bought VM and a template I liked from templatemonster.
I have bought also some extra extensions for SEO, site security and backup.

I face the following problems and I believe it is due to the template I bought but I don't have to find a solution
1. Adding products to VM that are SEO optimised. For example I want the image and the description to have a specific name but it changes everytime
2. I am not sure paypal payment works well, I would like also to add visa payment.
3. Category layout and products displayed in the categories is not working properly
4. checkout process
5. I am trying to add a different invoice not the dummy one that Vm created
6. Add a watermark to images

Finally I would like to import the products in facebook. But I cannot. I tried with pixel but doesn't bring anything. But this is not so important now. I prefer to fix the problems above so I can start using my site 100%