namespaces /schemas

hi all....am fairly new to XML and need some advice on following.

I have an xml document which starts something like this:

<?xml version="1.0"?>
<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema">

having read around/websearch etc have found out that this part of the doc is where the namespaces used in the schema (which follows above script) are being identified by URI references - am I right so far? These uuids: seem to be common (found loads via websearch) is this a common source? microsoft thing?

the doc goes on to contain the schema and xml content, however when i have tried to set up an html template in an XSL and transform this doc so it displays the html (have already done this successfuly with my own xml/schema/xsl) my IDE (XMLSpy) tells me that although the xml doc is well-formed, it is,

"unable to locate a reference to a supported schema kind (DTD, DCD, W3C Schema, XML-Data, Biz-Talk) within this document instance"

anyone got any ideas so that I can get on and get some html output here!!??

really grateful for any snippets which may get me on the right trail..

have attached file too....