Make WordPress on Zen Cart Add-On compatible with WordPress v2.7

The **WordPress on Zen Cart** add-on is not fully compatible with WordPress v2.7. The add-on can be found here: [login to view URL] This Zen Cart add-on is confirmed to work? correctly with WordPress v2.5 -? v2.6.5. However, when using WordPress v2.7 with this add-on, the main blog page that normally displays on <[login to view URL]> displays the following error: "**Warning: Cannot modify header information - headers already sent by (output started at /home/yourusername/public_html/includes/templates/template_default/common/[login to view URL]) in /home/yourusername/public_html/wp-includes/[login to view URL] on line 850**" I need a coder to make the proper updates to this Zen Cart add-on so that it works correctly with WordPress v2.7 Please note the following: 1. I will not give ANY consideration nor will I read responses which do not include a formal bid. If your response does NOT include a bid, I **WILL NOT** consider your response at all. (no exceptions) 2. Do not post a response asking me what my budget is. I will be considering a number of factors when making my decision. (skill level, ratings, etc) Price is only one of these factors. You MUST submit a bid or I **WILL NOT** consider your response at all. 3. Please list sample URLs of Zen Cart and Word Press sites you've worked on