Rocks'n'Diamonds

I need help passing this level. (If you refer me to the solution tapes, I'll kill you I can't get the tapes on the comp I'm currently playing the game at.) I killed all 4 Yam-Yams in what I assume is the correct order, but with the 8 dynamites I get, I cannot detonate the 5 emerald walls in the column and the couple of others plus the bombs - I always need 9. Help?!

I think the trick is to do the first Yam-Yam explosion at the lower left yam-yam, and then collect 5 of the dynamites and then use the rock in the middle of the yam-yam content to push down at the bombs.

By the way, for others who don't know which Ben levelset this is: It's the Contributions 1998 one.

Thanks, that worked! You're the man (I always ignored that rock so far )

I have trouble with level 50 (same levelset) how do you get to the back row of light bulbs at the top of the "tree"?

^Unsolvable level, that one. Skip.

Thought so. What about "Get ten and don't give up!" (lvl 52 in his 200 levels in 2000)?