[Firestorm. clickable mp link, help!]

Can anyone tell me how people make their Marketplace links clickable on the firestorm viewer?! I have been trying to figure it out but I can't figure it out. Someone please help me!

[Marketplace set up problems]

I have been trying to set up a online marketplace BUT it will not allow me up add things. I restarted my viewer as it suggested and it still will not allow me to add things. Did I miss a step or am I trying to upload them incorrectly? I followed a step by step youtube video. It worked well for him BUT it will not allow me.