BUG #2934: INSTALL FAILURE - failed to set permissions on the installed files

The following bug has been logged online:

Bug reference:      2934
Logged by:          inifinity
Email address:      priyatam@gmail.com
PostgreSQL version: 8.2
Operating system:   Windows XP
Description:        INSTALL FAILURE - failed to set permissions on the
installed files
Details:

I've been trying to install this from past two days and all I can see is a
an error message towards the end of installation and a log file which I
cannot acccess in my default C:\program files\postrgresql\8.2

the error says to check a log file perm.log but I cannot browse or delete
the *\8.2 folder. says access denied.

I have a admin user account and Im 100% sure I have given the right
username/pwd in the first page of the installation with 'postgresql' as a
superuser (and a diff pwd).

Tried searching all forums but no result.

I just hope someone sees this message and comes up with a solution rather
than ask my cryptic questions in return

Here is the postgresql-8.2.logfile (which I got after running again with
detailed logging)

Property(C): PrimaryVolumeSpaceAvailable = 0
Property(C): PrimaryVolumeSpaceRequired = 0
Property(C): PrimaryVolumeSpaceRemaining = 0
Property(C): INSTALLLEVEL = 1
=== Logging stopped: 1/25/2007  11:23:40 ===
MSI (c) (44:40) [11:23:40:031]: Note: 1: 1708
MSI (c) (44:40) [11:23:40:031]: Note: 1: 2205 2:  3: Error
MSI (c) (44:40) [11:23:40:031]: Note: 1: 2228 2:  3: Error 4: SELECT
`Message` FROM `Error` WHERE `Error` = 1708
MSI (c) (44:40) [11:23:40:031]: Note: 1: 2205 2:  3: Error
MSI (c) (44:40) [11:23:40:031]: Note: 1: 2228 2:  3: Error 4: SELECT
`Message` FROM `Error` WHERE `Error` = 1709
MSI (c) (44:40) [11:23:40:031]: Product: PostgreSQL 8.2 -- Installation
failed.

MSI (c) (44:40) [11:23:40:046]: Grabbed execution mutex.
MSI (c) (44:40) [11:23:40:046]: Cleaning up uninstalled install packages, if
any exist
MSI (c) (44:40) [11:23:40:046]: MainEngineThread is returning 1603
=== Verbose logging stopped: 1/25/2007  11:23:40 ===