How to add & Create e-mail message signature for outlook 2007:

Hope this helps you to creat Signature in Microsoft Outlook, just follow these steps :
1) Open Microsoft Outlook, then click on the "Tools" menu. Click "Options".
2) Click on the tab  "Mail Format."
3) In the "Message Format" section, at the "Compose in this message format", make sure you have "HTML" selected  to include special formatting like colors and graphics in your signature.
4) Then click on the "Signatures" button near the bottom to add a new signature 
5) Click on the button that says "New" to create a new signature.
6)Then enter a name for your new signature. Then choose to start with a blank signature, use an existing signature, or use another file as a template. Click "Next".
7) Another dialog box opens allowing you to edit the signature.
8) Click the "Finish" button.
9) Click "OK".


Creating Outlook 2007 Signature
Click on Tools, then Options.

This will open the Options dialog box.   Click on Mail Format, then click on the Signature button. 

This will open the Signatures and Stationery box.  Click New and give your signature a name.  In the text area, type your desired signature.  You can change the font, font size, add bold or italics by using the buttons and the drop down menus found above the text area.

Note: you can setup more than one signature, click on New again and repeat the process above.
To make your signature appear when you create a new email or reply to an email.
On the Signatures and Stationery box, you can select your signature for new messsages or replies and forwards.  Select the name of your signature for new messages or replies/forwards and click on OK.

Hope this helps.