I'm not sure of the simple way to do it, but I can tell you the more difficult way. :) You need some html code. You have the URL of your picture, so put the following code in your post where you want the picture to appear:
(img src="http://www.mypictureurl.com/picture05.jpg";)

Now, I had to replace two characters so that the code would show up, otherwise it would have tried to display the picture at that URL. Use instead of ( and ).

Make sense?

I should have specified, put the URL of your picture in the quotes instead of the example URL I gave.

Also, you should try it out on the GardenWeb test forum:
http://forums.gardenweb.com/forums/test/

There's also a computer help forum if you have future questions:
http://ths.gardenweb.com/forums/comphelp/

You should set yourself up with an album on photobucket.com. Then, all you do is copy the text from the html tag line from the picture you want to post and paste it right into the body of the message box on Gardenweb. Then, when you hit the preview message, you will see it before you submit your final message. If it's too big, you can edit it on photobucket.com and resize it to make it smaller. The one I'm posting is the website & blogs size.

{{gwi:29638}}
Give it a try. It works great!!

I'm SO glad to get this info! Thanks, Ellen, for asking.

I do have a photobucket account, so I tried and tried and FINALLY figured it out. Use the img src method that Thane posted above, but copy the URL from 'properties', not the address at the top in your album.

Open your photo
Right click on photo
Click on 'Properties'
Check to make sure the photo has a maximum pixel width of 450. If needed, Go back to your photo, and 'edit' to 'share on web'.
If photo is small enough, copy the URL from the 'Properties screen.
Then paste onto your Gardenweb message using around it.

img src="your photo's URL" with

Photo in San Francisco's Japanese Tea Garden, October 2006

Ellen: If you are following as above and it still doesn't work could it be the Mac? On another forum I'm on Mac people have issues posting pics there.

Sienna is so beautiful!!

And here is your problem rose:

{{gwi:1078274}}

You are so funny Cathy!! Here I am scrolling down and I see Sienna! I'm going- what in the world!!??? Thanks, she is pretty special...

Thanks so much for posting my roses pic, it was late in the day-I was in a rush, so the flash washed it all out-not my best garden photo.... as you probably saw in the other pic the other roses are fine and full... you might be right, it could very well be the MAC, it's weird, I wonder why it matters over internet, but I know it happens. I will try to post tonight from home and then again from my work PC computer on Monday and see what happens... Can't wait for when I can post "look at my garden pics" instead of "see all the chicken wire puppy barriers!"

Don't be a stranger, send me an email and let me know how you are all doing!! How was your trip??

I also use Photobucket...it's free & it's great!

I use the option for posting a clickable thumbnail, as illustrated below. Thumbnails are very helpful for people who are on dial-up modems cuz they don't take so long to open. To view the pic, you simply click on the thumbnail & it enlarges...then move your cursor to the lower right corner & pause a moment; a small enlarger button appears. Click on that & the pic enlarges again, giving you the sharpest image. The fully enlarged pic below will measure 640 X 480.

Here's how to do it:

Select the desired image in your Photobucket album and click the small empty box below the pic's lower left corner.

Move the slide bar (on the right) to the bottom and click on "Generate HTML and IMC code"

A new display will open with 4-5 options. Use the FIRST option, which is labeled:
"HTML clickable thumbnails for eBay, Live Journal, My Space, etc. - recommended"
Place your cursor at the beginning, highlight the ENTIRE contents of that box...then right-click it and choose COPY.

Now move into the GW thread you want to post to. Right-click inside the "Message" box and you will see the code attached. Click on "Preview Message" ... if you followed the directions, you will now see the actual picture instead of the coding.

You can add any text either before or after attaching the photo.

Patrick