contact form trouble shoot and enhancement

project consists of 2 separate tasks: (1) troubleshoot existing contact form, which currently produces error and does not submit mail, probably the result of imprudent tampering: **Warning**: Cannot modify header information - headers already sent by (output started at /home/jakkeven/public_html/contact/[login to view URL]) in **/home/jakkeven/public_html/contact/[login to view URL]** on line **166** (2) enhance the contact form which is part of a movable type blog, grabbing each entry's title upon clicking the text link leading to the contact form, and populating the subject field of the contact form with the entry title. i presume this should be possible by making the link to the contact form a submit action instead of a simple static link, and including the movable type $MTEntryTitle$ tag into the submit value. the subject field has been added but may have overlooked something that causes an error. please also indicate whether it is possible to inject the full blog entry body into the feedback field of the contact form, using the $MTEntryBody$ tag, at the same time with the title function described above. this i assume would require 2 values to be submitted simultaneously and i'm less sure of how that might work. the blog page with a few dummy post titles is at [login to view URL] the contact form is at [login to view URL] access to ftp and movabletype templates will be provided once your bid is accepted