PHP and XML->allowing (X)HTML

Helloo People, I am currently working on a XML driven website with PHP. I have a slight annoying problem though... I want my users of the content managment to be able to use some XHTML tags in thier text, and i want to use the nl2br() function so that every \n is converted to <br />. This seems to work, cos in my database i do see those <br /> tags. When i get the articel from the database and build XML, then use XSLT to convert the output i get <br /> tags displayed in my text ( &lt;br /&gt; in my HTML source ).. this drives me nutty, i hope someone can help me with this, Thanks in advance... Best regards, Davy Obdam