1994 dodge caravan won't start

Well we are at a total loss as to why our van won't start. Two times
previously we got in the van, went to start and nothing happend. We
jumped the battery and it started. Now it happend again only this time
jumping did nothing. The van is totally dead. The only sound you hear when
you turn the key is the starter relay buzzing. We had the starter and
solenoid checked at a local parts dealer and it was fine. We changed the
relay and bought a new battery. STILL nothing. We used a 12 volt tester
and check the conections to the starter and they were fine. We are open to
any suggestions that any experts on dodges would have. We thought it may
be a fusible link but the connections to starter have power sooo. PLEASE
HELP!!!!!

its a possiblity that you need a new ignition module if that is not the
problem the only other thing i can think of is the starter i know you
said you had it tested but that isnt always accurate