can someone please tell me what tiles the new enemies use...

Take a look at the NeoFirst quest file.

That'd be here. Open this in Beta 15 only.

Actually, another way would be to simply highlight a tile somewhere in the New Enemy Tiles pages, and hit C then V. Nothing will happen since you're pasting the same tile onto itself, but the editor will detect that and tell you what enemy goes there. 😛

...Or just use this (slightly less messy) collection of ZQuest screenshots that I spliced together one day, because I was sick of all the rapid-copypasting. Heh. 😛