FPSE 2002 File Missing

When trying to submit a form, with SMTP enabled in the extensions, the
application event log reports Error# 20015 referring to not being able to
locate docicon.xml.

With further investigation I have determined that the templates directory
that is supposed to be in C:\Program Files\Common Files\Microsoft
Shared\web server extensions\50\ is missing.

Any clues as to how I can locate & install what is supposed to be there?

I am a newbie to IIS and FPSE and have many domains/websites already set up
and working fine except for submitting the forms. I would hope that I do not
have to redo my installation and break anything or cause sites to be down.

Thanks - Jody