[One, Two, Middlesboogie]

Recently, I bought TCoMI for PC. It's a bloody good game, and it's v. funny, but I'm totally stuck here.

I'm on Disc 1 in Mega Monkey mode. I've got everything I need for the journey to Blood Island except Elaine. I've found out where she's buried, using the map on LeChimp's ship and the spotlight controls, but to dig her up I need to get the actors off the stage.

All the walkthroughs I've read tell me to now 'use the chicken grease on the cannonballs'. I've got the chicken grease, but where the smeg are the cannonballs?! One walkthrough was slightly more helpful; telling me that the cannonballs were on top of the worn travel trunk. But they're not! They're nowhere in the theatre!

I'm dying here.. someone please put me out of my misery and tell me where they are.