What trouble exactly do you have?If you are using a standard CrunchBang desktop, replacing Thunar with SpaceFM in menu, key-binding and autostart should be enough, I guess.
welcome to linux, crunchbang and this forum!in windows, the file manager is called explorer.on crunchbang, the file manager is called thunar.thunar is one of many applications using the gtk toolkit, so you want a different gtk theme i guess.you can change them with lxappearance, which i think it is installed by default on crunchbang.
I have been interested in trying some different file managers lately, and I have installed spacefm. It seems fine, but I don't dislike Thunar either. The only thing that I am really missing in Thunar is tabs. I have read most of the spacefm posts on the forum, but they're mostly opinions as to whether they like spacefm or not. What I would like to know is specific