this is for the folks who use simple DNS, and have a webserver setup, and that don't want to fuss with the chinese ps3.proxy.gui program.
to make things easier if you already have a *.pkg file you want to install on your pc, you can do as follows. This only requires one known sony_store_demo download link. For my example i'll use the link to the Gripshift Demo (US version - works for me here in NY). Save the following code as Shiftgrip-Demo.bat:
if errorlevel 1 goto makefolder
move *.pkg cdn\UP0017\NPUB90002_00
rename *.pkg lhcFImiCuqdJwo3KAVvn0HPXlVyby854XyHd2iQvwqGCvJUQA30Q0gERrBCcU7jleVxGn8YqsyL6R8h4aNb5ck6KM7AGxey214DtD.pkg
drop this batch file into the 'htdocs' folder of your webserver, along with a copy of the *.pkg file you want to use. execute the batch file (it will create the directory structure needed to download any *.pkg utilizing the Gripshift Demo download button from the sony store).
things you need to make this work:
A. simple DNS
_____1. hit the records button
_____2. tools button > quick domain wizard
_____3. domain name = zeus.dl.playstation.net
_____4. web server ip = <the ip of your webserver>
_____5. clear out secondary DNS server
_____6. hit okay.
B. webserver (i use abyss web server)
(note: always use a copy of the *.pkg file when using this batch file, since when ran again, it will delete the one it processed last)
Edit: you can use any *.pkg of any game you want to install, even though you are installing it via the sony store Shiftgrip Demo download button.