how 2 post rss-feed to a category

hello again, i am not sure if we understand eachother but i want to take an rss-feed from another webpage and then show it under a cathegory. if that is what you meant too then please were in <?php wp_list_cats(‘sort_column=name&optioncount=0&feed=RSS’); ?>
(tha tag you showed me to use earlier, should put the url to the RSS?

Anyone that have used another script to post to their WP-blog? thinking about using ss2blog-script to make automatic posts but dont know if i can choose were to put the rss-feeds in my blog, i want to choose rss-feed no1 to be published under category 1, rss-feed no2 published under category no2, and so on…

Ok i need some help, i am trying to hardcode this rssfeed-phpcode into the sidebar with help from phpscript expressRSS.

…rssfeed in phpcode-format……………
<?PHP
$url=”http://expressen.se/rss/halsa&#8221;;
$numlinks=”3″;
$usedynamic=”Yes”;
$linktarget=”_blank”;
$tfont=”Arial”;
$tsize=”1″;
$tstyle=”Regular”;
$tcolor=””;
$dfont=”Arial”;
$dsize=”1″;
$dstyle=”Regular”;
$dcolor=””;
require_once(“incrss.php”);
?>
………………………..

but WERE do i put the code and in what file?
or should i put it in to the database itself?
i want it published under a choosen category of mine…