The mht feature is working properly, although experimental:)
But in the mht generated file, when a URL in a page refers 
to a bookmark i.e. index.htm#item1 it maps to a link like 
<cid:somethingehtm#item1> instead of <index.mht!
cid:somethingehtm#item1>,
When theres no bookmark jump in the page, it works fine! 

Thanks,
Leandro Quintino
Brazil