Ouch. The front bezel should NOT come apart.
The H2O is waterproof and that waterproofness is courtesy of glue all around. So - it's glued to the display, or light layer I guess - you just have to pull it off. Very carefully so
Posted my own experience when I opened mine to get at the internal SD card slot:
https://www.mobileread.com/forums/sh...6&postcount=40
https://www.mobileread.com/forums/sh...4&postcount=46
Can't help you with the screen replacement issue, as I've never replaced mine.