1_original.html - basic HTML taken from mobius page
  	- run through JChemDig etc
2_templated.xml - change html --> xml, add the template 
	- now illegal xml (due to entities)
  	- run hack,bat
3_corrected.xml - entities and href corrected
	- now legal XML again
	- run sign.bat
4_signed.xml - signs fine

MDL Molfiles converted using mol2xml.pl

It looks like the XSign tools is changing the entities numbers to strings '&#246;' in 3_corrected.xml to 'ö' in 4_signed.xml for example. Why, I have no idea. 