order-by and "http://www.w3.org/1999/XSL/Transform" ve

Hi, this is gonna come across as quite daft, but until my XSLT book
arrives, I will just have to ask this. Ive gone through so many web sites
and recommendations and information about XML/XSL/XSLT/XPATH and im having
just a little trouble understanding it all.

Im my project I previously used <xsl:stylesheet
xmlns:xsl="http://www.w3.org/TR/WD-xsl">
and made use of the "order-by" in the for-each statement. Now I have
changed to 
"http://www.w3.org/1999/XSL/Transform" version="1.0", and order-by throws
me an error. 

Is there a specific site with methods/parameters for specifically this
namespace ?

Thanks in advance

Karlo

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list