Hi The alignment is out on most product list pages ie New products on homnepage (dependant on products) and categories on the left. The underlying problem is image size and taht some titles run onto two lines.
This is not a problem with the template. This is happening because of your product image sizes and product title lengths.

The in stock and kgs I want to add appears when i go into he product itself but not on the main category list
You can add the weight to the product listing page via the admin at configuration -- product listing. There is no setting for adding the stock quantity. I would recommend searching the forum to find out if someone else has done this.

The 2nd page issue may be a browser thing but as there are only two products they are aligned one left and one on the right with the seperator just to the right of the left image leaving ahuge gap between the seperator and the right image
It has nothing to do with the browser. As I have said, this is the correct behavior. If you want to change the number of products per product listing page you can do this in the admin. Here is a link to a tutorial:

How to Set the Number of Products per Product Listing Page

Thanks,

Anne