Ok so
1. Making them: http://msguild.org/news/maplestory-signature-generator
Follow this tutorial, and after you finish, under the info, ull see the url for it.
2. Putting it into the sig.
1. Go to settings at the top right of the page
2.On the left side of the page, under my settings,my profile, click edit signature
3.a.To put in writing, simply put in textbox and press save signature.
b. to add in a pic, along the bar at the top of the chatbox, youll see a little palm tree in a box. Click and add the URL
alternative of 3b. if adding only one pic, scroll slightly down to signature picture. If you want to use a URL, enter it in option 1.
If you want to use a pic from ur compy, then use the second option, Press upload.