Migrating from RoboHelp to WebWorks

[Hemalatha]

Hi,
 
We use Frame 7.1, Acrobat 7.0 and WebWorks Publisher 2003 for creating print documents and online help. 
 
We now have a legacy online help file that was created using RoboHelp 2002. So we are looking at ways to migrate from RoboHelp 2002 to WebWorks Publisher 2003. Can anyone suggest the best way for this conversion? 
 
Thanks in advance.
 
Regards,
Hema Bhanu