i just isntalled slack 10.0 and got my mouse and network card working (as i can ping and recieve packets) all by myself

however, there are afew big problems now:
1
when i 'startx' it displays the splash screen and loads the components, but haults on loading 'nautilus' but disappears when i click it. when i try and click on the file browser (nautilus) or run from command line it doesnt load but gives errors (from command line).. which i can post once i reboot and write down the errors.
when isntalling slack i selected all the default options for the WMs available.. so i should have fluxbox, blackbox, and afew others isntalled too but i wasnt sure how to run them.
2
the default browser (galeon) doesnt load when i click it.. mozilla doesnt load when i click it, and displays 3 messages when i try to run it from console, then haults.. i can post these 3 lines in a bit
3
since i dont have a browser, i rebooted, downloaded firefox into windows, rebooted into linux and copied it and tried to install it there. it gave an error about no 'libxpcom.so' found... where can i download this? iv searched online but dont get many useful results.
4
is there nothing like synaptic or a friendly gui for package management in slack [by default at least]? iv tried running the commands 'apt' and 'apt-get' and it said they are both not found.. im not familiar with either [if the first one even exists] but i figured id try it since i dont have my ubuntu's synaptic
5
the background is an ugly gray with black dots on it, which im sure some people might know what im talking about. is there a command to change this? in the panel up top i cant seem to find a menu item that relates to more or less any system configuration.. and when i right click the background nothing happens, and there is no icons either...
i thought maybe gnome-desktop wasnt running so i typed that command but it said command not found.. not sure how to fix this? (im using gnome 2.6 i believe is the version)
hopefully someone can help with at least one of my problems.. thanks!