Dude, once you have the hang of it, you'll be linking everything!
K, so, when you have a reply window open, can you see the little icons above it, like an earth with a linky thing, and one that looks like a picture? Hopefully you're set up like that, because those li'l dudes are your friends.
So type a word or phrase you want to be the link, then highlight it, now copy the url of what you're linking to. Remember the little earthy with a linky thing icon I mentioned? Click that. Paste the url you copied into the window that pops up. Voila, you've made a linky!
Want to link an image? Get the url of the image. (I'm not sure the easiest way to do that on a PC, on my Mac I just right-click and "copy image address," I'm guessing PC's have something similar?) Now, in your reply window, click the little icon that looks like a picture. Paste the image url in there. After you've done that, you'll have something that looks like this:
[ IMG]
https://www.sweetshoppedesigns.com/inspiration/ data/507/made-for-walkin. jpg [ /IMG]
without the spaces. Copy the url of the page you want to link this image to (e.g. a layout in the gallery), highlight all of the above, click the earth with linky icon again, paste the URL in there, click okay, and VOILA, linked image!
It should look something like this in the reply window (without the spaces!)
[ IMG] IMAGE URL[ /IMG][ /URL]