Newbie trying to make htmlhelp.dsl modifications

Hello,

I'm working on a project where we use docbook to generate the user
documentation. The html-output is used for the online help system which
is displayed using Qt Assistant - a program very similar to mswindows
help. This program needs a "profile" - an xml file that specifies the
structure of the document and the keywords. I found a stylesheet called
htmlhelp.dsl, which generates such files for mswindows help system and
modified it to generate a Qt assistant profile for me, and it almost
works. I have one minor problem, which is that the links I generate in
the profile for indexterm's are (slightly) wrong! I really have no idea
how to fix this problem, since I don't really understand how the
stylesheet works, my modifications are merely done using mental pattern
matching :-)

(mode qtassistantkeywords
  ;; this mode is really just a hack to get at the root element
  (root (process-children))

  (default 
    (if (node-list=? (current-node) (sgml-root-element))
	  (process-node-list (select-elements 
			      (descendants (current-node))
			      (normalize "indexterm")))
	(empty-sosofo)))

  (element indexterm
      (make sequence
	(make formatting-instruction data: "\less-than-sign;keyword")

	(make formatting-instruction data: (string-append " ref=\"" (href-to
(current-node)) "\""))

	(make formatting-instruction data: "\greater-than-sign;")

	(process-children)

	(make formatting-instruction data:
"\less-than-sign;/keyword\greater-than-sign;
")))
		    
  (element primary
    (htmlhelpindexterm))

)

An example of the problem I get is that for a particular section in the
html generated from a docbook section with an indexterm I might have an
anchor labeled AEN95, but the link I generate in the profile uses the
anchor #AEN97.

Furthermore if give a section og chapter an id, that id will be used as
the name in the html, but my generated index still uses the
AEN[XX]-thingy.

I've attached the stylesheet and the desired output format is documented
here, if you are interested:
http://doc.trolltech.com/3.3/assistant-6.html

Your help is appreciated.

br,

Thomas Sondergaard