The first thing you will need to know is your swap user ID number. If you do not know that, complete the steps here first to find it: http://forum.mysubscriptionaddiction.com/discussion/479/how-to-find-your-swap-user-id
Once you know your swap user ID number, follow these steps to add your swap profile link to your forum signature:
1. Log into the forum from a non-mobile device.
2. Go to the top right corner of your screen. Click on the icon that looks like a circular gear (when you hover over it, it says Account Options).
3. Click on Edit Profile.
4. In the far left of the screen there is a menu option that says "Signature Settings." Click on it.
5. Paste the following link in the text box there: http://swap.mysubscriptionaddiction.com/user/XXXX/profile
6. Replace XXXX with your swap user ID number.
7. Click Save.