Creating and selling Illustrator pattern swatches, gradient swatches, styles, symbols, brushes etc is fun but once they are out there, where do they go? Where do you install the items so Illustrator will access them and you can start to play with the various tools and create your own designs. With each version and OS the location for the files seems to change. Perhaps it is just me, perhaps they have always been in the same locations?
The Illustrator presets can still be placed, I hope, in the presets folder (swatches, brushes, etc) but now, with all the increased security and permissions etc on the PC and MAC, as soon as you try and place them in the application's main folders you will be asked for permission (ok, you should be asked for permission, I am certain some people just use their admin account etc or turn off all the security or something). Well, if you don't, and you don't want to be pestered for the admin account (I can just about remember my passwords of about 40 or so characters long but I forget occasionally), you can always place them in your user account area.
Took a bit of research and who knows, perhaps I am still wrong on the location (noticed quite a few places where the text seems to offer different locations and I couldn't get the files to work). On Vista and with Illustrator CS4, place the preset files in the AppData section of your user account, in the roaming \ adobe \ adobe illustrator CS4 settings \ en_US \ swatches (notice, presets has vanished) or graphic styles or brushes etc. Of course, this depends on your language, I have to use en_GB instead of en_US
On OS X for Illustrator CS4, you have to place the presets in the <user> section (again) : library : applicationsupport : adobe : adobe Illustrator CS4 : en_US : swatches (or graphic styles etc)
Not sure why there is a difference on the mac and PC to the adobe Illustrator CS4 bit, why have settings in one and not the other?? anyway, hopefully all cleared up. For now anyway but I am certain Windows 7 has a different structure yet again.
Personally, I just use the browser found in the various panels such as swatches (on the right of the panel) and then search for the file, generally doesn't take too long to find the file. Don't like adding all the files to my various presets folders, just makes the menus longer and longer.
Just updated the web pages accordingly, I know it won't be the final bit of the story, someone will come along and say I have got it all wrong and it is in a totally different location or something. Just better get back to creating some more designs, so much easier.