Couple more wall ruins to go with the gate:
https://rapidshare.com/files/3058910473/ruins1.zip

Here's another one.  I can't see any seams in Blender that jump out at me.
https://rapidshare.com/files/1059317746/ruinedGate2.3ds

Ruined Gate
Hopefully this one worked out.  It looks all right in Blender using a seamless texture and expanded uv dimensions.
https://rapidshare.com/files/1204423320/ruinedGate.zip

If it worked out, I'll try to make some other walls etc to go with it.

OK, here's first tombstone.  I didn't upload the texture because it's the same as the cross.
https://rapidshare.com/files/4214211397/tombstone1.zip

Here's the cross with a simple texture.  I could make it more complicated, but then it wouldn't work with the other items.
https://rapidshare.com/files/586690007/cross.zip

If that will do let me know and I'll do the others.  If you want something more individual I can look around for a design or something.

I better wait to see who else decides what, but I think it would be easy to add textures to these models on that site you linked:

gravestones
http://opengameart.org/content/cemetery
Inscriptions might be a problem because they should probably be different, or maybe illegible.

I'm not really the best at texturing.  I'll do it if someone else doesn't.  I need the practice, surely.

This tower maybe could use a little work but also needs texture:
http://opengameart.org/content/medieval-tower

Might need to build the hut, didn't see anything.

One ruin here that needs a texture:
http://opengameart.org/content/ruins-0

could probably add some wall sections easily

I'll have to check back when the next version comes out.  I know they have Angry Birds and other Android games so there must be some way.  I want to get a Kindle Fire because then I get free book rentals with Amazon Prime.  Writing a few small games with jpct would be kind of fun at that point and possibly posting them someplace, either Amazon or Google or whatever.

It looks good, but just a little funny without a door handle.