Hi. Welcome to the forums.
No, it does not cost money to write here
This site is mostly concerned with the modification of PS2s and homemade programs for it. Someone here can probably answer your question but if your english is good enough (which it seems to be) you might want to check out ign.com or try a google search for nba ballers guides.
If that was not easy to understand I could try again. Good luck!
ALLERGY ALERT: The above post may be nuts.
N64, GBA, both un-modded.
NTSC U/C PS2 v4 w/No Solder v4 (SOLD, DRE... Laser Died
NTSC U/C PS with Plugmod (SOLD to pay for above