Arch Linux doesn't use deb files. Whatever you are looking for is most likely in the AUR. So you can use yaourt or the package manager to search for the program
Never tried Manjoro, most people say for a newcomer to Linux to use a Debian based distro as it is much more user friendly. It used apt (which I really like).
Just gonna go with another version of the darn thing, since I'm too curious to give up, but too irked to troubleshoot this command not found crap. How's Mint Linux for newbies?
Eh, I'll just make a Mint USB thing, see how that works out. Also, I couldn't for the life of me get my speakers to work with Manjaro. It looks slick, but there's too many issues for me!
after 7 years (i got into linux on 2010 barely, and what you described was me back then) I have to say: you need some basic programming background for linux to make sense. Sockets, SSH, perl scripting, gnu make files, objects, source code, headers, tarballs. Otherwise stick to debian and use a GUI guided setup. Also try a Virtual machine environment with networking shit (internet)....
plain and simple debian (or plebdebians like some say), better get used to set up packages as .deb first, THEN when you master the art of linking and compiling sources you may tweak your kernel sources as you wish....