can you guys tell me how to create mod by laptop ?

its always the same. open worldbuilder and learn.

i press it but is dosen't work and how to make picture of signature tell me plz

To put a picture in you're sig you need to buy toriprime.

For the signature pic, you need ToriPrime which can be bought for $10 here

P.S. http://forum.toribash.com/showthread.php?t=35747

What do you mean?
Worldbuilder doesn't open up?
Or what?

i can't create the object in the laptop

Does your laptop have Numpad?

If no, while in the worldbuilder, press H, and look for the keys between [ and ] for the alternate keys for just the keyboard.
Press K to activate this mode.