the answer is google.. first find tutorial about photoshop slicing then 2nd find tutorial about css... thats where i start...
Wrong road. Using photoshop to build websites is like using a car's heat manifold to cook food. Slicing and dicing means you'll never really learn how to build a webpage. It's not a bunch of images pieced together! It's text and content dressed up with colours, typography and images using real CSS. That said, there are a gazillion tutorials for such thing floating around mostly free on teh interwebs.
A way you can do it (may not be the best way) is to mentally section of your psd into divs and then code it by hand. But this is time consuming and requires some html/css knowledge. I know its not a Photoshop tutorial, but this tutorial technomono.com/blog/simplyblue-web-layout-part-i/ I think explains a good way to convert and image to xhtml/css, you might be able to use that concept on your psd.. Remember you want all your text to be ...text, not and image.
Yes... Be very weary of anybody who just slices up a PSD. Might look good but just so wrong in every other way. Doing it properly does take time and in terms of web design/coding, most often you'll get what you pay for.
If I see a "web design" company using slices, I assume they've done it that way because they don't know how to really do it using HTML and CSS. That said, I do actually see it now and then (I can tell cause the page loads in big ugly chunks : ) One problem with slicing is that the slices must match up pixel-perfect, which can usually be done okay in one or two browsers but is difficult for all of them. A second problem is that all the images together add up in filesize, making longer loading times. Someone on another forums posted this huge psd or whatever and asked how he could slice it. I coded it as well as possible (there was no content to speak of, which was a problem) and it looks... exactly the way he posted it, on all major browsers, and flexible width. The whole page plus css is smaller than the psd was. I did need to use GIMP to cut at his large image to turn pieces into bits of background etc. Just a better deal all around.
well, I think if you good at CSS or know CSS and HTML, you don't need any tutorial. So, I recommand you understand CSS/HTML first.