flash app for ipad and iphone - problem-challenge using htaccess

Hi,
Need some input and hoping there is a simple solution.

I use flash forms that are a very important part of my website.

When an ipad or iphone user goes to one of these forms and they do not have a flash app installed, I would like to use .htaccess to redirect them to a different page that recommends a flash app to install, allowing them to view the form the next time they revisit the form page.

I CANNOT use a script or change the flash file because I use a flash form generator to create these flash forms. I would like to use htaccess because I'd put it in the directory with hundreds of these forms.

Anyone have a suggestion as to how to do this?
THX

see here