Dunno if this link will work, but I just searched in the library here and got 45 results: https://forums.flightsim.com/search/?q=tfs388.zip&quick=1&type=downloads_file

I figured that was the issue but didn't know if the redirect would be from your end or the internet end.  There are so many old sites out there that after years are still experiencing this.

Still wondering if anyone is able to find the tfs388.zip file. I've been looking for awhile and still can't find it. Thanks y'all!  

So true Nels, I'm just a stick and rudder guy in smaller aircraft, The comment was directed towards advance electronics in a 172, not the Garmin system itself. I also fully appreciated the Collins FMS in the C-12R (got me across the Atlantic).  

-- Getting to know the area and locals at Isalmi Airport , Nice Area, Friendly People --    

-- Landing @ EFII-Iisalmi Airport --  

Despite the small distance between EFLL-Lapinlahti and EFII-Iisalmi airports, the route I devised more than made up for it.  🦗 -- RL--  Photo of EFII-Iisalmi Airport   Today's Destination. 👇

A GNS 430 or 530 is not a particularly sophisticated system these days. The GNS 430 dates back to 1997 so this is really pretty old technology we're talking about here.   So in flightsim terms, these units date back to when we were using FS98!