Eshop problem in category and tag page

Good afternoon. I have 2 little problems with ESHOP plugin for wordpress working in a category page. In the post page .f.e. [login to view URL] both the ADD to CART button and the Eshop widget work fine, which means that after clicking the ADD to CART button, we stay on the same page, and the widget gets refreshed automatically with the new item. But in a category page f.e. [login to view URL] when I click on ADD TO CART button, by mistake it jumps to the Shopping Cart page, and the widget, which is placed at the top right corner, it doesn't refresh automatically, so I have to refresh manually the page to see the new item. I would like to have a little bit of code that ensures that when we are adding items to cart, when in a category or tag page, we stay in that same page, and the widget gets refreshed. I'll be waiting for your proposals. Victor