I have slightly similar problem:
System details: 64-bit Win-7 with Ora10 driver.
I've succeed to create ODBC thru C:\Windows\SysWOW64\odbcad32.exe which passes Connection test.
BUT...while I trying to connect this Data Source thru QlickView 9 I failing to connect (getting ORA-12154 TNS:could not resolve the connect identifier specified)
Any leads will be appreciated,