beute@beute.plus.com
It's in my JCF profile, can't miss it

There's no way to convert .j2t to an image, if you want images of these tilesets you must:

1) Open them in JCS and take screenshots of the various pieces of the tileset and paste them together in one large image
2) Run a level using the tileset in JJ2, and take a screenshot (in 8bit).
3) Save the palette of the screenshot and load it into the large tileset image you've been putting together.
VOILA!

However, as you say it's not JJ2 relate dI'm not sure if you have JJ2 or not, if you dont theres really no way you can grab the tileset images except for asking the creators if they would be kind enough to give you some

I think that pretty much covers it, I still have backups of all my later tilesets, starting with Nature's Ruins to my latest release (Mega Megatropolis). If you need them just ask which ones you want and I'll upload them for ya somewhere, good luck with the game!

P.S. It can suport 4090 tiles? SWEET! *dr00ls*