To use an image or sound file on a wiki, you should upload the file to the wiki.
Click on "Upload file" in the sidebar to upload a file. You must be logged in to do this. Browse to where the file is on your computer. In the "summary" box, write a description of the image, who took it, and what license it is available under (GFDL, Public Domain, etc). This information will be placed on the file description page, along with a history of modifications to the image.
File types that can be uploaded include .png, .gif, .jpg, .jpeg, and .ogg. For security reasons, many file types may not be uploaded. This includes HTML and Zip files.
Uploaded images can be used inline on a page, linked to, included in a gallery, or automatically thumbnailed. See this page on Meta for full details.
When a file is uploaded with the same name as an existing one, the old one is replaced.
For an alternative approach try this: