Could also use photobuckets, but the following way is more simple.
In addition to easy, this way also saves time and is still in single file on your blog and can reduce the space than to add a plugins in the blog.
The following easy steps
WP login first
* 1. Add new post
* 2. Decide Title / Titel Post "FOTOKU" for example
* 3. Add Media
3 steps to upload a file photo / image that you want
* 4. Fill in the Title image
* 5. Fill in the link if you need
* 6. Insert into post
After the insert into post, proceed as in the next step following Screenshoot
* 7. Photo / Image has entered the post
* 8. Click on the HTML toolbar to get the HTML code of his
Well ... we've got to live code and copy the HTML code to paste
Appearance=>Widgets
PS: Save the draft New post it, so that at any time require easy to find and save time.
Widgets Text your sidebar
and the latter do not forgotten the save / save
now your photo or image that is not coded HTML HTMLnya existing code and has appeared on the sidebar of your blog.
good luck for you