signs

Using Easy Ojb. Designer and FSScenery Creator I can import API macros into fs9 and they do fine. However I'm having a heck of a time creating like a little sign that says "restaurant" or a billboard. Can someone tell me how to design simple macros such as signs that can be imported into fs9? What is the best route to take as there is some freeware and also share. I just want to create and place some signs on buildings and strucures. My new Paint Shop Pro won't seem to get it to 8-bit so EOD will use it, etc, etc. If not one thing, then another. So, what is simplest way to create your ownsigns and billboards and import as macro into fs9? Thanks.