The bulkhead you're thinking of was in the Rocker series of boats. The Villain has a different setup. It's still not screwed into the hull and will absorb an impact to help prevent shock on your ankles.
It is true that if you want the most access to the front of the boat, you will need to remove the extra bulkhead plate with a screwdriver. However, you can also pull the bulkhead all the way back and this will allow you to get lots of gear around it and into the front. I believe the change happened because the old aluminum system would bend/break after a lot of use by heavier paddlers. This new system will endure much more abuse.
I'm not quite sure about the foam piece. Is it a D-shape? Does it have a small hole through it? If the answer is yes to those questions, then it is the foam that your feet rest on. The bungee on the bulkhead plate goes through the hole, then the little clamp goes on the bungee to hold it on in case of a wet exit. There should be one on the right side and left side of the boat. If that doesn't make sense or if the foam doesn't match my description then email or PM me with a picture or better description and I'll help ya out. Happy paddling!