Xalan 2.7 extensions, variable is not resolved

[maksim.likharev]

Hi,
I recently tried to use Xalan 2.7 for my project, but it seems like behavior has
changed.

I have following:

...
<xsl:template name="name">
        <xsl:param name="id"/> 
                <db:table name="NAMES">
                        <db:column name="ID" select="$id"/>
                        ...

so using 2.7 I have "Variable id is cannot be resolved", 2.6 works fine.
Change in behavior related to code commented in 
'org\appache\xpath\operations\Variable.java' file:

      // Hack city... big time.  This is needed to evaluate xpaths from 
extensions, 
      // pending some bright light going off in my head.  Some sort of callback?
      //synchronized(this)
      //{
      //        org.apache.xalan.templates.ElemVariable vvar= getElemVariable();
      //        if(null != vvar)
      //        {
      //  m_index = vvar.getIndex();
      //    m_isGlobal = vvar.getIsTopLevel();
      //    m_fixUpWasCalled = true;
      //    return execute(xctxt);
     //         }
                

so really my question is, how should I use it now.
Thank you.