HI,

I don't know why but the contact us module does not include the vitals of the person using it.
Like ip of user and web browser
The IP address itself if anything should be included in the email that they send so that you have the ip address that they are using to access the module. I can't recall if it includes the time as well but that would be nice to have although it would I guess be included in the headers of the message itself.