level creating help

I've been trying to use the level creator for several months, but I still can't add objects or make any of the paths solid. I saw the objects and stuff in that bank thing, but I don't know how to put them into the level. Assistance please.

(ps: I have version 1.0.4)

Well Tso, I think I know the problem...  Notice how there's numbers from zero to seven?  I do believe those will help you solve the problem.
0,1, and 2 give you background for tilesets.
3 is solid ground.
4 and 5 are objects behind juni.
6 and 7 are objects in front of juni.
So if you want solid ground, layer 3 is what you want.
Placing objects?  Make sure you have 4,5,6, or 7 selected.
Hopefully, this will help out, but if not, I'm more than glad to provide more assistance.

You should most definitely (a) get the PDF tutorial from http://nifflas.lpchip.nl/index.php?topic=18.0, and (b) update KS to the latest version (I believe older versions had some problems with custom objects, among other things...).