Okay, I get where the first URL came from - if I click on the picture it sends me to a site with that address. So how, why, and where was the jpg URL created? Sorry, I'm an absolute doofus when it comes to internet language - have even avoided posting on Tim Spalding's Classical Wiki because I was so intimated by the need to use codes! OTH, it'd be nice to understand how images can be included in a post. . .
RED: This is the code for the link to the page. Note that the url code spans everything (the image AND the text for the link); ORANGE: This is the location of the jpeg image file; BLUE: This is the code that tells the forum to make the image an image;
The other text is the text in the link.
Of course, it's made much easier by the fact that, if you upload a picture to PicFury, they give you all the codes - all you have to do is click "copy" on their site, and click "paste" in your Pothos Forum message. They even include the [url=] business.
I'd love to make it seem that I've been some sort of wizard - but honestly, it couldn't have been easier.