PGSQL 8-beta for WinXP Home Edition Instructions

Can anybody help get me started here? I've downloaded the 8-beta .msi
file and ran set up on my XP Home laptop. Now I have no clue what to do.

I followed Carlo's web tutorial and got almost all the way through the
Cygwin install for 7.4.3 (many, many times), but, alas, I ended here...

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When I type in the three lines of code - cygrunsrv --install postmaster
... --shutdown, I get the following error:

cygrunsrv: Error installing a service: OpenService: win32 error 1073:
The specified service exists already.

When I type in cygrunsrv: --start postmaster, I get the following error:

cygrunsrv: Error starting a service: StartService: Win32 error 1069:
The service did not start due to logon failure.

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That's when I quite that route and went with the version 8-beta. The
only problem is, I haven't seen any instructions that make a lick of
sense to me.

Any guidance would be appreciated. I really want to standardize on
PGSQL rather than MySQL, but this whole painful process has left my head
ringing.

Any help would be greatly appreciated. I will post a tutorial of what I
did to get PGSQL up and running if I'm able to do it. If not, I guess I
have to go with MySQL even though I would prefer not to go that route.

TIA...