Yes, i don't know, i works because via terminal it shows the path of the icons but billboard desn't show it.
You can't nest {} like that in Billboard. I'll see what I can do for future versions. You can work around that by doing the checking in the script and removing the {network-name? } around it.
And how do I call network-name with a script?
networkname=$(qdbus --system com.nokia.icd2.context /org/maemo/contextkit/Internet/NetworkName org.maemo.contextkit.Property.Get | sed q)