Starting problems, keeps cranking but no start up Options

[Tumult5sfe]

I had to do a head gasket some time back. put everything back together and went to start it but the battery was dead...so i slapped the charger on the thing and poof, my one ground wire that leads from driver side inner fender to engine went up in smoke. now the damn thing just sits and cranks all day long, i get plenty of fuel, not a strong spark but there is spark, and pretty much thats it.
so does anyone know what i may have to do? i grabbed another ecu thinking i cooked it, replaced the ground wire, and a few other odds and ends. also, when i turn the key off my fans kick on and the temp gauge pins hot, and they shut off when i flick the headlights on and off. Any help would be amazing.

[Spider77]

Well, so far into looking, they all share the same wiring setup "Engine Room Wire"...pretty much runs along both sides of the fender into the junction boxes at the kick panels. Its hard to really tell as I only have the wiring diagram and not a schematic. To me, sounds like a short somewhere. But im not too sure. Exactly what did you do. I know you had a dead battery, and recharged it. Did you start it up while recharging, what do you mean by "odds and ends", etc...? We had a problem no too long ago at work where someone hooked up a starter the wrong way and it smoked everything.