As I recall, Mac OS X allows you to sort by type, so that would group all of your directories together. There shouldn't really be any need to do anything more than that.
So far I have learnt that I can navigate to InfoPlist.strings and alter the code via the terminal, however the code I have is different than the one I found on the website(http://www.howtogeek.com/67100/force-your-mac-to-put-folders-on-top-of-files-win dows-style/). I have been trying to convert the code I have from binary to mxl with no luck, so I'm not sure how to proceed. I have a Mac OS X Lion 10.7.5 so I'm not sure if the coding is different or what. Basically, I'm just trying to force my folders to be above my files in finder. Any help would be greatly appreciated!