i have tryed your advice but i still am having no sukses

I checked gamefaqs and that has the same code listed there as well. Here is the link, with that cheat and some others. I'm not sure why it isn't working for you. I guess check some other gaming sites and make sure that they all have the same code there.
Though there are two different gnome cheats it seems, one in game and one at the main menu screen. Make sure you're using the right one at the right time, maybe that's the problem too.

GRRRRRR, this cheat does not work for, CAN SOMEONE BE NICE AND HELP ME.......Pleasejavascript: addtxt('');

ok ok here is what i do press start and enter in R,L ,down, black,left ,B listen for a ooo and the gnome will appear. if u did it wrong ive heard it says eheh.
ps make sure to type in the left, up , down, and right on the cross pad. Hope this will help if not write another thread. please check out my threads to!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I have tried this 10,000 times (slight exaggeration) and it just DOES NOT work!!
Here's what I do, I go into bust out, go done, now my sim is at the house, I go START and it comes up with the goals, buy, build etc menus, on the cross pad, I go RIGHT, LEFT, DOWN, BLACK BUTTON, LEFT on the cross pad and B (The red button) it goes back and doesn't do anything. there is no voice at all, no gnome no anything. Im sick of my sims not being able to complete their goals because they're too tired, too hungry, bored, not social.. It is really annoying!!! My partner has tried it too and it doesn't work for him either.