Steam Installed Free Upgrade To Tsw7 No Raildriver Doesn't Work

I installed TSW7 free upgrade, and now my Rail driver doesn't work in either TSW6 or 7. The instructions in Raildriver Joystick Interface say to load the PieHid64.DLL to the steam folder " Steamapps\common\TrainnSim world. I cannot find that folder in common, so now I can't use Raildriver at all in either TSW6 or 7. To say I am Po'd is an understatement.

 

Finally got that sorted out, so Raildriver is now working. The only other issue, is twice the screen went black after awhile annd finally had to restart PC on TSW7. Think I will just stick with 6 for awhile.