Ok, ok. Download the tools.zip fie and unpack it. If you find a error, post here please.

If pollinating two plants give the most rare kinds, the result is wrong. This is for the ones that have not discovered the magic plants yet.

When I run Combo. Select a set and hit Calc.
It says

error:bad argument #1 to `pdrawbmp'(number expected, got nil)

Can you suggest what to do or what I might missing.

You need Plant Tycoon PRC installed in order to run it.

how do you know the names of the plants? i don't see it anywhere! and is that mostly spanish?

They're all my creation. I've named it as they looked at me.

i don't understand how to use it~!
how to run all the programm?
does it need to install or something?
i am not very good at computer!!!!!!! thanks.......

Install Combo.prc, pluaRT.prc, and the plant tycoon PRC. Select two plants from the list. To meet my nicknames, it will show a "picture+picture=picture".
And the MobileDB log requires MobileDB.

where can i get the plant tycoon PRC?

Plant Tycoon.prc is the Plant Tycoon program file for Palm OS. If you have a Palm device, Plant Tycoon.prc will be installed when you install the game.