SO, what i want to do is remove the 2nd floor junction box to see if i
can get a glimpse at where the cable might be heading towards. the
problem is, i can't for the life of me budge that junction box. I
don't see any screws holding it in place, so i can't figure out why
this box is so secure up there. the same thing seems to be the case
for the 3rnd floor box. Anyone have an idea of how these junction
boxes can be removed or pushed out of the way?

If it's a "New Work" box that's intended to be put in place BEFORE the
drywall/plaster is put down then it's likely held in place by nails which go
outside the box via a bracket cast into the box (if it's plastic) or welded
to the box (metal) box.

MAYBE a "Saws All" can be slipped into the hole along the outside edge of
the box and used to cut off the nails.

It's pretty easy to repair drywall. You might just want to make some
inspection holes and see what you can see.

Also, a side question, anyone know of a device with a mini camera that
one can use to look in cieling passages..kind of like a snake with a
camera?