i configured the wlan with 3 qnx6.3.2 machines, the problem was that the machine could not ping thru one another, i 
think the driver add on should be okay, here is my script:
io-net -d orinoco channel=11,network=mywork,mode=adhoc -p tcpip
ifconfig en0 192.168.1.1

and the nicinfo output:
ORiNOCO 802.11 Wireless Ethernet Controller

Physical Node ID ........................... 00022D 01B57F
Current Physical Node ID ................... 00022D 01B57F
Current Operation Rate ..................... 11.00 Mb/s half-duplex
Active Interface Type ...................... Unknown
Maximum Transmittable data Unit ............ 1514
Maximum Receivable data Unit ............... 1514
Hardware Interrupt ......................... 0x3
I/O Aperture ............................... 0x300 - 0x33f
Promiscuous Mode ........................... Off
Multicast Support .......................... Enabled

Station Name ...............................
Network Name (SSID) ........................
Channel: ................................... 4294967295
BSS Type ................................... Unknown

Packets Transmitted OK ..................... 5
Bytes Transmitted OK ....................... 210

Packets Received OK ........................ 3
Bytes Received OK .......................... 0

Hope anybody could figure out this problem, thx.

Eric