There was already this kind of topic on this forum. Please try to use search function. Probably You will have to change template of listing product for a table or change some CSS attributes like floating and clearing.
That's an answer I can work with, I'll give it a try and post the results.
@ Makaron,
I tried using the search but that doesn't take me to the solution, it's all about older versions and none of them work in QC 4.1 If this question comes up that many times then it looks to me that the solution is hard to find, just directing to the right topic would help out a lot of people.