GameShark and the VisualBoyAdv ... Don't undestand!

[Dark Trainer]

Hello guys,
I'm new in the gamming hack.. I have a doubt:

Using the VisualBoy emu, we have the section "Search Code" for game shark codes. We type the value and the results appear.

I've noted some hexadecimals values, in case corresponding to Status Points of the character. Then I compared to the official GS codes published in the site, in case the code to "Max Status". and I didn't undertood from were came the diferent value codes...

The example, I'm playing Pokemon Fire Red. The code official is:

Max Stat Points:
38A01438 2724 -- pokemon place
3FF45394 9219 -- all points max

And the code that I've found is:

"Attack" Hability:
020242DE (pokemon place) + 0100 ( stat point value, in case 250 )
020064F2 (stat point category) + 0100 ( same stat point value )

Observing that the "pokemon place" itself is tottaly different from another. Why?
To activate this code I've found, what should I do?

I don't wanted de "max" point value, just another value less than. I've tried to change the final 4 digits from official code, but unsucessfully. I've tried too diferent MustBeOn codes at last.

Can somebody teach me how to do it?

Thanks at all!