Install “WINE”
(make sure you have online access)

NOTES:
...a) This is done on DEBIAN system. Others may have to adjust basic commands of their system (i.e. "dpkg" command, etc...)

...b) If you're watching the terminal during winetools install... you'll see "error this" and "error that". . Most of that is MS software bitching about not beging able to "verify" and "plant" and "report" things in/from your computer... As long as the install process keeps going... don't worry about it.

...c) You'll recognize typical Win install menus. Just click "OK" on everything... of course, you'll have to accept MS rules & regulations... Do typical Windows install. When it says you have to "REBOOT"...  That's Windows non-sense. Linux doesn't need that. Just click "OK" every time and Linux will trick poor little Windows into thinking it actually rebooted.

...d) WINE directory is installed in your /home dir and IT IS A HIDDEN DIRECTORY called /.wine (click "show hidden files and folders" to see it)

1. Download "Wine" for your distro at: http://www.winehq.org/site/download
2. Search web for "winetools-0.9.4.tar.gz" (this is the only version I've NEVER had problems with on ANY distro)
3.Install “Wine*.deb” - in terminal: dpkg -i wine*.deb (or in Konqueror > right-click icon > "install" .deb
4.Install Winetools ():
.....right-click icon and "extract to" it's own directory
.....cd winetools* (change into new winetools directory)
.....open terminal and type:  sudo ./install
.....when finished type:  wt (to launch winetools installer)
5.Setting up Winetools: 
  a)Click “base setup”
  b)Click “Create a fake windows drive” (select defaults & wait for “fake win re-boot”)
.......- WineTools will find your cd-rom (leave “default”) > then user name and organization (just leave these “as is”)
.......- After a few fake windows restarts "fake drive should be completed. 
.......- Should end up back at the base setup menu.
  c)Select DCOM98 (on-line - installs and “re-boots” then back to WineTools Menu)
.......- error might show saying newer version is already installed (just click "OK")
  d)Install “MS foundation classes” and “IE 6.0 (your-language-only)”  (Arial font installed later). 
.......- Just click “next” and “ok” on everything (this should complete the first list).
  e)Click “main menu” to get back to the start. 
  f)Click “install windows system software” then click “ok”
  g)Begin installing with “windows installer” then go down the list installing everything, top to bootom in your own language
  h)(Sorting out fonts) Click “main menu” followed by “exit” to leave WineTools. Back to the terminal.

6.Installing “Fonts” (“~/winetools/fonts” directory should already be made. If it isn't... make it)
......-NOTE: Winetools might have made a sub-directory in your /home dir... instead of /.wine dir. Make "fonts" dir where your system put wintools (if you move it... do so at your own risk). This is Windows we're talking about. You can't just be moving things and customizing freely. (may be this is why you've moved to Linux :)...Anyway...
(change into /~winetools/fonts dir)
cd ..
cd winetools
cd fonts

7.Download fonts. This link is still around as of 6/10/07. Copy this entire line and paste into terminal. 

wget http://kent.dl.sourceforge.net/sourceforge/corefonts/andale32.exe && wgethttp://kent.dl.sourceforge.net/sourceforge/corefonts/arial32.exe && wget http://kent.dl.sourceforge.net/sourceforge/corefonts/arialb32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/comic32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/courie32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/georgi32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/impact32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/times32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/trebuc32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/verdan32.exe &&  wget http://kent.dl.sourceforge.net/sourceforge/corefonts/webdin32.exe

Fonts should now be downloaded and installed. (if you get “permission denied” error, log in as root: sudo su)

8.Install Fonts... terminal type:   wt
...a)Select “base setup” then “install true type font - Arial”.
...b)Click “main menu” then “Install Microsoft true type corefonts”and go down the list installing all the fonts (just accept and click "ok" on everything).
...c)After all fonts in list are installed, click “main menu” then "exit"...DONE

9. Place your MT4install.exe (use name of your MT4 install file) to ~/home/YOUR-USER-NAME/.wine/c/ProgramFiles
9.To install MetaTrader: navigate to ~/home/YOUR-USER-NAME/.wine/c/ProgramFiles >  Open terminal and type: wine MT4install.exe (use whatever name of your MT4install.exe file is.

- After install, installer should place MT4 icon on your desktop. 
- To launch manually... go to ~/home/YOUR-USER-NAME/.wine/c/ProgramFiles/YOUR-METATRADER-FOLDER and type: wine MT4.exe (again, use name of your .exe executable).