Conker's BFD in-game error! Help!

Hey guys, having a loading problem w/ Conker using PJ64 version 1.3.
It occurs RIGHT before Chapter 8: "It's War." When you wheel barrel out of the cemetary, and into the water. Next, upon hopping up onto the little island w/ a doorway and enter, this is where I receive the following error:

Reason I'm still using v1.3 is because this is where I have all my saved games. Also, I had previously posted a Conker 'no ground textures' a waaay whhhhhile back which was fixed (thanks guys), but that problem went away magically and haven't had any problems since now.
Spec's below...

Holy cow, saves are backwards compatible? I thought I read they were not? In any case, I shall try that and let you know how it goes.

Wow, what do you know, it is backwards compatible. And guess what, w/ v1.5 it didn't lock up after getting to the next area!
Thanks for clearing that bit up guys. I appreciate it.