What you can do is search the frigidaire web site for your model,
http://www.frigidaire.com/support/manuals.asp?user=&NewSearch=New+Search
but it won't have your exact model number, so you type in the first few letters/numbers, as in fwx69, and it will return several close relatives of your model, one of which has a parts manual for viewing in pdf or download (right-click, save as). Check it out:
http://www.frigidaire.com/support/ResultsPage.asp?strModel=fwx69&User=&Search=Search
Click on the FWX6968HW0 model parts manual, 95333316, and then by looking at the parts break-away you can see the screws at the top-back to loosen first, then the screws at the bottom, both sides, next. It will get you started.
Bill K, August 2007