Category browse page images not aligning
Question: In Virtumart 1.1.2 the product images on the category browse pages look bad. There are 3 images in a row on one line, but then next line has 1 image, then 3, then one. It looks terrible.
Answer: Virtuemart 1.0 and 1.1 both allow you to set how many images are shown in a row for the category browse pages. In both you just have to choose how many you want to show. I suspect what is happening on your site is the setting has a value of 4 and thumbnail image widths combined are too wide for that div.
It's like this.
The container of that space is 300. You have 4 images that are 100 pixels wide each. Combined, they need at least 400 pixels. The system is trying to force 400 pixels into a 300 pixel box (div). The div likely has a fixed width and so, 4th image "wraps" to the next line. So, that is why you have a 3, 1 ,3, 1 layout.
To fix, just go to components > virtuemart > category and edit the category in question. Set the value to 3 vs 4, or less.

Or, you could try making your thumbnails smaller.
Another option to modify your templates and or the "browse" page template to accommodate the needed width.