Inside Etoys-To-Go are old 32 Bit interpreter VMs, from before Cog was around. You need those to be able to run the Etoys image. On Linux, there used to be a simple way to install the 32 bit support even on a 64 bit system, but I don’t know what the current status is.
That Etoys image might have some more support code for DnD handling than current Squeak. Not everything has been properly integrated back. @timfel did the bulk of that work.