I suggest playing around a bit with the web services that provide image hosting. They are much simpler for occasional use for forum posting, etc.

You basically upload an image to any of these services, and they provide a link (i.e., “‘http://’ location”) to that image that you can put into your forum posts, email, etc.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin