if i use fireworks for example to change the logo i often have the problem that the fonts are missing. For example if i open the source-png file from Solstice - than Fireforks says there are missing:
The fonts needed to change the logo are typically included in the source files. But since Solstice is a Labs release not all files may be included. I will find out if the fonts can be made available. In the meantime you can try searching through some font sites for the ones you need. Here are a couple you might want to try: