1) You must first install a webserver on your PC. k7m has written one specifically for iTunesRemote which you can download [here]. To install it, simpley unzip the file and start iTunesRemote.exe. The webserver is listening on port 81, so you only have to browse to
http://[Local Address Here]:81/iTunesRemote.php.
2) Open iTunesRemote.php in Notepad. change the variable $pathToHTTPDir to the directory that iTunesRemote.php is in (my file has a different location in it, so be wary). Remember that in PHP, all symbols must be preceded by a \, which is why one should separate directories with “\\” in this instance (you’ll get an error otherwise).
3) Make sure iTunes is open and has a song in the ticker bar (you shouldn’t see the apple)
4) Navigate your PSP or Wipeout Browser to http://[LocalHost Here]/psp/iTunesRemote.php (or whatever file structure you placed inside of the htdocs folder)
5) Enjoy your iTunes Remote Control. it makes you a lot less dorky searching through your music library with a sleek PSP than with your computer, so be sure to use this to your advantage.
The design is fully customizable, just edit the psp/template.html file. the %variablenames% variables will be replaced by their current value at runtime. More features will be added soon …
If you have questions or problems, check out this ongoing discussion about it.
I personally do not use iTunes as I hate the application, but those of you who use it might find this useful.