BUG #5640: ODBC driver installed but not found

The following bug has been logged online:

Bug reference:      5640
Logged by:          Hannu Pohjanpalo
Email address:      hannu.pohjanpalo@winware.fi
PostgreSQL version: 8.4.4
Operating system:   Windows 7 Pro 64 bit
Description:        ODBC driver installed but not found
Details: 

I installed PostgreSQL 8.4.4 in my Windows 7 Professional (64 bit), and ran
(as Administrator)Application Stack Builder to download and install the ODBC
driver. This installation looked perfectly successful, but when starting
Control Panel / Administrative Tasks / ODBC Settings, and press Add..., I
cannot find this PostgreSQL ODBC driver, I can only see two SQLServer
drivers. I uninstalled and tried again: same result. Have you seen this
before? All ideas are welcome, thanks!