yeah, before placing the character on the ground, use the Page Up button to higher it, when it won't move up any higher, push the "+" button, this will lift you up a floor, then push the Page Up button again till you can't do it anymore.
Repeated the steps until you get the characterhigh enough to plcae in the tower, then use the arrow.
Another way to do it would be to place the character UNDER the tower, then right click on it, then press enter, which will position it ABOVE the tower, now use the "Page Down" button to lower the character into the tower.
Hope this works, I thought of it off the top of my head
-Sunflash
When FPSC gets good enough, lets make a Redwall game!