> >           <xsl:value-of select="$ symbol_param "/>
>                                   ^^^
> 
> >               	<xsl:with-param name=" symbol_param "
>                                            ^^^          ^^^

XSLT 2.0 allows whitespace in all those contexts.

1.0 doesn't (though you might get away with it).

Michael Kay
http://www.saxonica.com/