The only thing you're missing is the experience of having done this before.
A very brief breakdown of how to install the Devside server kit is this:
Unzip to destination drive (your C: drive is best otherwise you'll have to start manually editing the config files) and this assumes that you downloaded one of the compressed archives and not the self-installing executable.
Open up the www folder that unzipped to the destination drive.
Copy the my.ini and php.ini files to C:\WINDOWS
That last step assumes that you unzipped the server kit to C:
If you unzipped to another drive we'll have to get creative.
Add this to the end of your Environment Variable Path
Open up a command prompt andtype these commands, hitting Enter after each one - note that you can copy from here and paste into a command prompt window:
apache -k install
net start apache2
net start mysql
That's the base installation done, remembering that you have to press Enter after each of the above.
All that's left is to lock down MySQL a bit (not essential at this stage) and possibly to add the username of root into your C:\www\phpMyAdmin\config.inc.php file.
If that sounds like a major headache, it isn't really.
If you get badly stuck, ask for help. If you need it I can configure the whole lot for you, put it on a server for you to download and write out some simpler instructions to get you up and running.
Installing/configuring on D: will cause issues unless you manually edit the two .ini files.
I'm happy to help with this if required, but don't think it's hard- it's just very, very different to most people's expectations and experience.