Toyota Repair: Wont start after dead battery, fuse box, radio head

Question
Our 2002 Camry does not restart after sitting for a month.  
Even a jump does not start it.  I exchanged the battery
with a working one, and still doesn't start.  Only
noticeable electric working is the emergency light, key
warning bell, and one or two indicator light when the key
is turned.  No radio, head or tail lights, dash lights,
etc.  

The tow truck who "unsuccessfully" jumped the battery tried
to sell me a line of batteries he carries.  Makes me wonder
if he did something.  If he did, what did he do?  If he
didn't, what is wrong?

Answer
It's very likely that the battery was jumped backwards which is what normally happens when this condition occurs, under the hood in the large fuse box near the battery check the 120A alternator fuse, it's a large fuse with a clear cover on it, this fuse is probably blown along with a few other ones, the main thing is to get this fuse replaced so the other fuses can get voltage, this fuse is not exactly easy to replace because it has two bolts inside the fuse box, the fuse box has to be disassembled to get this fuse out, another option is to bridge the gap of the fuse with a drop of solder, this should allow the car to be driven until the fuse can be replaced, check the other fuses marked EFI,IG,ECU B+, just check them all to be sure.