The learning is sometimes hard to understand and it is overwhelming, for me at least, to see page after page of code where even a misplaced comma or semicolon will surely wreak havok on the program running at all.
I have to head to work, but if someone else here sees you message maybe they can chime in.
I will look tonight to see what I can see, and I don't understand the weatherlink since I don't use it, but perhaps there is an option in there that allows to you point to a graphic file and tell it to upload that, too. Just a place to start.
And jcweather.us is a spectacular site.
He uses some images from the Blitzortung lightning site if I remember correctly.
His site is something I long to finally create, with so much on it, but yet well laid out.
You can duplicate some of his stuff, but you really don't need any of it to just display an uploaded Boltek image.
http://www.lorickweatherlive.com/is another weather page that has some stuff on it and I believe he was heavily involved with Boltek stuff years ago and may have some hints for you. I think there is a 'contact' button on his page, too.
Best wishes, it will work eventually! Dale