All Apps from app store say not compatable after jailbreak

[ukgamingpcs]

Hi Eveyone
I have a iphone 3g jailbroken to 4.2.1 and updated baseband . Unlocked with ultrasnow . ***Moderation Notice***
Now when i go to the app store every app say not compatable .
Were have i gone wrong ?
Many Thanks in advance
John

 

[Thomasjtsi]

Where have you gone wrong? Perhaps it's the piracy smashed onto your iPhone that's causing issues....