wireless problem

please help me... I am fairly computer literate... I have 3 computers running xp. connected in ethernet wired network... working fine.. I thought trying wireless. Inserted wireless card in each computer.. let the windows configure them. ( it is in peer to peer ...adhog ..).
when I go to my network places I can see all three computers under wired computers.. clicking my network connction.. and clicking onto my wireless connction it says that they are connected , I can see the network but not the computers or contents...What am I doing wrong...??

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