RewriteRule for SEO friendly URLs

[bnashenas1984]

Hi everyone

I'v built a website and now I'm stuck with writing .htaccess file

I know many people would say the time for SEO fiendly URLs is over but I still need to find a way to do this. (Some customers want what they want)

Here is what I need :

I have 2 index.php files.

First one is here :
www.example.com/index.php

And it might contain up to 4 different variables like this :
?category=val1& keyword=val2&so rtby=val3&pag=v al4

Here is what it should look like in the URL :
www.example.com/val1/val2/val3/val4.html

The last one should end with .html

Then the second index.php file is located here :
www.example.com/product/index.php

This URL allways contains 1 variable which is the product id : ?prdid=1234

This should also end with .html
www.example.com/1234.html

There is a tool in the link below which works fine with changing variable to folders but I couldn't figure out how to change the url to .html files

http://www.webmaster-toolkit.com/mod_rewrite-rewriterule-generator.shtml


Any help whould be highly appreciated

Thanks

[bnashenas1984]

anyone?
I realy need to fix this.