I'd like to switch between fluxbox and icewm, I've downloaded xce and icewm. I don't know how to get xfce to take over as the desktop manager. I've tried to get icewm to set up, I choose the icewm session, but I don't get an icewm menu selection button on the bottom or top. I'd like to get a menu button so that I can switch from icewm if I feel like using fluxbox once in a while, but I'd like to get the xfce desktop on there full time.

Any insight would be appreciated!
TIA

Just for verification, you installed xfce or simply downloaded?
To download / install
apt-get -f install xfce

Xfce should already be in slim login screen. Can you see it by pressing F1 when it is time to login?
If not you will need to add it to .xinitrc + slim.conf

To make it default to xfce on login you will need to edit .xinitrc, do this by
menu --> run
leafpad ~/.xinitrc
CHANGE:
XINITRC_DEFAULT="icewm-session"
TO:
XINITRC_DEFAULT="startxfce4"
file --> save
close
logout and back in

To add the menu options for icewm you will need to add the desktop managers menu, which is part of the debian menu setup. I am not 100% sure but there should be a debian menu system version of ~/.icewm/menu in /etc/X11/icewm. You can copy the needed parts to ~/.icewm/menu. You may or may not need to install"menu" from the repository. This will give you the full debian menu though, I do not know how to only view the window managers portion.

Thanks, somehow I missed this response, Sorry!
I'm in the process of reinstalling, so if this is needed again, I will try to use this information!