1998 Ford F-150 Fuel Pressure Regulator????

I've had my truck over a year. Have had not one problem. Suddenly it died. Would not start. I had it towed home. It would turn over but wouldn't fire. I checked all fuses and relays 3 were blown. Replaced them all and it still wouldn't fire. Just turning the key on listening for the fuel pump and heard nothing. I dropped the tank replaced the fuel pump and still nothing. Now I have the fuel pump running from the battery and I can hear the pump. Still won't start. Checked fuel rail. None. Replaced fuel filter. Now fuel to fuel rail. In my mind the next logical step is the fuel pressure regulator and I can not find it. Could it be a blown injection fuse or relay? Please help. I am disabled on a very limited income and this truck is my only transportation.
Thank you
Sincerely,
Tony Kays
Indianapolis, Indiana