On Adobe oficial site. see related link.
No, they are separate programs or software's to use and to buy.
You have to buy Photoshop so there is no link unless you already bought it. Which I didn't buy it but that is what I have been told.
You must buy localized version of Photoshop. Adobe Photoshop officially does not ships as multilingual.
You can purchase photoshop online at many online retailers. You can purchase photoshop directly from the Adobe website, or from authorized retailers such as Best Buy.
When you buy and install Photoshop it should be installed into the Applications folder with all the other applications.
You can purchase updates for photoshop by going to the official site for the program and finding what you need. You can download things from other sites but it may or may not work for your photoshop program.
Adobe Photoshop is not multilingual. You must buy or contact support for localized version.
It's on the box that the software is in, when you buy it
Paintshop is no where near as good as photoshop CS5, however, if you are low on cash, paintshop might be cheaper
Photoshop books can be found on Amazon where there are many available to purchase. They can be purchased for around $30-40 new or buy them used from Amazon Marketplace.
yes but you wont look back , not everyone does though but lets not get into that here.
After 30 days usually.