Computer Hacker Lv 3
***
atk:1200
def:800
Machine/Effect
Dark
you may sacrifice this monster after 1 turn(s) to summon Computer Hacker lv 5

Computer Hacker lv 5
*****
atk:2100
def:1700
Machine/Effect
Dark
you may only summon this bye sacrificing Computer Hacker lv 3,after 1 turn(s) you may summon computer hacker lv 7

Computer Hacker lv 7
*******
atk:3000
def:2600
Machine/Effect
dark
you may only summon this card by sacrificing computer hacker lv 5,if this card is summoned choose 1 of you opps. monsters to destroy

Access Denied
Spell
this card destroy all computer hackers on the fied and removes them from any deck

Computer Expert
spell
this card can only be equiped with computer hacker lv 7 an it will boost its attack by 800

Computer God
**********
atk:4500
def:4300
Machine/Effect
Dark
Any time a computer hacker is on the field boost this cards attack and defense by 650

~helpful hint~
when using darkhole use it before you summon a monster

Please... Please Please PLEASE word your errata properly! Not many people can actually read it properly. I had a hard time myself.

As Ginkan said, use the right errata...Look at real cards, which are worded quite proffesionally, so as to leave no holes in the effect, and to confuse no one. And btw, what's with the "helpful hint" lol?
Edit: Oh, now I see why the helpful hint is there...

those cards are pretty cool. It took me awhile to understand it but its still good.