Fritz-Berger is still in business.  They publish a large catalog similar to
the Reimo catalog.

I don't have the instructions for your tent, but most of these go together
the same way.

There could be 2 different ways your tent will attach.  The most common is
where you slide a pole into the pocket along the edge of the flap.  You then
set the pole in your gutter and clamp it in place with 3 small clamps.

If you are missing the pole or clamps, I should be able to help you out.

The other method used was to slide a plastic rail onto the flap and then clip
the rail to your gutter.  The rail would be in 2 or 3 sections and would
slide over a rubber bulb, or rope sewn along the seam.  I may have a couple
of sections of the plastic rail in stock.

Steve Lashley
SKL Enterprises Inc.
http://EuroCampers.com
636-797-9015
636-789-2127 fax