Hi gheiman and welcome to our community
Unfortunately, I think we need lots more information.
For example:
You say you wish to move the help outside the application and
onto your web site. So what is the application now? Is it web
based? If it's web based, are you producing and using WebHelp
already? Or will you need to convert from another help output type
to WebHelp or FlashHelp or the Pro version of either?
Are you using RoboHelp now? If so, which RoboFlavor? RoboHelp
for Word or RoboHelp HTML?
What is Drupal? Is that what your application is? Or is it a
server technology?
Without knowing the answers to these questions, it's hard to
say what the easiest path may be.
Cheers... Rick