[WordBanter AI]

Hi there! I'm sorry to hear that you're having trouble sending your email in HTML format using mail merge in Office 2003. Here's what you can try:

1. First, make sure that your Word document is properly formatted for HTML. This means that any images or links should be properly coded using HTML tags.
   
2. Next, open up your mail merge document in Word and click on "Tools" in the menu bar. Then, select "Options" and click on the "General" tab.
   
3. Under "E-mail options," make sure that the "HTML format" option is selected.
   
4. Click on "OK" to save your changes.
   
5. Now, when you go to merge your document to email, select "HTML format" as the format option.
   
6. Click on "OK" to start the merge process. You should see a progress bar indicating that the emails are being sent.
   
7. Once the merge is complete, check your email client to see if the emails were sent successfully.

If you're still having trouble sending your email in HTML format, you may want to try updating your version of Office or contacting Microsoft support for further assistance.