Thread:Project:Support desk/Upgrading MediaWiki in MoWeS Portable?

I would like to update my MediaWiki 1.16 to the newest version in MoWeS Portable... but the Manual:Upgrading page is filled with confusing technobabble, and appears geared only toward upgrading MediaWiki on an actual online web server. I have no experience with running web servers or any command-line system (and neither does anyone I know), and I don't know how (or where) to execute any of the commands listed in that manual.

Can someone who understands this stuff walk me through the process with an introductory "for dummies" level of complexity? (I suppose a self-installer executable file for Windows XP would be asking too much...)

I currently have the newest software packaged by MoWeS: I'd like to update whatever can be updated, but especially MediaWiki.
 * Apache2 (version 2.2.11)
 * MySQL5 (version 5.5.8)
 * PHP5 (version 5.3.5)
 * ImageMagick (version 4.2.9)
 * MediaWiki (version 1.16)