To use icewm instead of the standard twm, do the following:

0) Edit your .xsession file in your home directory by typing:
     
     pico ~/.xsession

   change the line that reads:
     
     twm&

   to:

     icewm&

   To save the file and exit pico press ^X and then press 'y' followed by 
   the Enter key.  Log out and log back in to see the default icewm 
   settings.  If you are happy with the default settings, you can skip the
   rest of this walkthrough.


To customize icewm, do the following:

1) In your home directory, create a subdirectory called ".icewm".  To do this,
   type:

     mkdir ~/.icewm 

2) Make a copy of the default network preferences file.  To do this type:

     cp /usr/best/solaris/lib/X11/icewm/preferences ~/.icewm

3) Edit your copy of the preferences file to do whatever you want.  If you miss
   being able to move the mouse over a window to select it, do the following:

     pico ~/.icewm/preferences

   After pico opens up, you should see the file.  Change the following line
    from:
      # ClickToFocus=1 # 0/1

    to:
      ClickToFocus=0 # 0/1

   You should find this line right at the top of the file.  Feel free to look 
   around the file and experiment with options.  Please do so at your own risk
   though!  

NOTE: you must restart your session each time you make a change for it to take
      effect!
   

If you want an image in the background, you can get it by using the 
command: icewmbg  (look at the man page for more info).


Also, you can get cool transparent terminals by editing your .xsession 
file.  you have to replace all your 'xterm's with 'rxvt'.  You MAY need to 
specify the complete path for rxvt... and to find that, type: 

    which rxvt

Then substitute the result for each instance of 'xterm' in your .xsession 
file.

CAUTION: Do this ONLY if you know what you are doing.  Please read the man 
page for rxvt BEFORE you attempt to use it.  If you don't know how to use 
the man pages yet, you probably had better think twice about monkeying 
with your class account settings.  Walter Park has better things to do 
than help you figure out why you can't log in anymore!