MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I found that if you print the wrong version for PLA, say because you didn't read through all of the instructions (oops), you can use small rubber bands to hold them together. I put two rubber bands per head and body section (went around 3 body sections with each rubber band set), one on either side of the dorsal ridge and between the pegs. Still flexes/articulates freely, but with a nice little bit of resistance.
The rubber bands were only $1 for a 1,000 count package at my local dollar general. I used a small pick to help place the rubber bands as they are hard to get a hold of.