That's simple. You can use 'transparency' input in layer panel, also you could add a mask (third tiny icon at the bottom of layers) and paint with black and white brush when the mask is selected. After the magic happens you just need to save image as PNG. Select File - Save for web and devices, select PNG in top-right selector and that's it.
To move from Photoshop 7 to CS4 will require a purchased full copy of Photoshop CS4 as there is no upgrade available for versions of Photoshop older than 8 - the first CS version.
Photoshop CS4 Bible Check Here http://www.amazon.com/Photoshop-CS4-Bible-Stacy-Cates/dp/0470345179
you can use any photoshop but i tend to use CS3 or CS4
Editing pictures are easy if you have photoshop installed in your computer, such as CS4 Adobe photoshop, you can edit images and increase productivity on the fly.
No
Yes, you can upgrade from Photoshop CS3 (or earlier) to Photoshop CS5 Extended, no problem.
CS4 is version of software, and the name before CS4 is stand name of Software, for example Photoshop CS4 is: software Photoshop and version CS4. The Name of Software is Photoshop not Photo shop, please don't change. ---------------- If you want to know more about it then open photo shop and click on the help menu and select About Photoshop sub menu and then you will see and Photoshop about window. You can read there more about it.
Nowhere, Photoshop is not free software.
CS4 Extended is the legal version that you must buy. CS4 Portable is a free, illegal version that does all the same things as CS4 Extended, the only difference is that you can't add plug-ins
It depends on what you want to do. There are currently 4 versions of Photoshop: * Photoshop CS4 Extended * Photoshop CS4 * Photoshop Lightroom 2 * Photoshop 7 Elements (Mac version is 6) * Photoshop.com If you just want to "try your hand," at graphic design, then Photoshop CS4 Extended is a bit overkill for you needs. Photoshop Lightroom 2 is geared toward professional photographers, so that's not really what you would need either. That leaves Photoshop CS4, Photoshop Elements, and Photoshop.com. Of those, Photoshop CS4 is going to be the most expensive, and the most powerful. Photoshop.com offers a basic online photo editor, and from what I can tell is free. Photoshop Elements is somewhere between CS4 and .com in terms of power. I'd recommend trying out Photoshop.com, and if that doesn't suit your needs, to try Photoshop Elements or Photoshop CS4. Adobe provides free trials of both on their site.
Filter -> Blur
See related link.