First off, my Mapdot ( the picture you see to the left of this post which consists of a map and a pic of myself ) is a little more complicated to produce than the standard Mapdot.

 IF you just want to get a pic of yourself ( no map ) on the left of the posts, then all you need to do is to find a pic and resize it to something like 100x100 or 90x90. The image size will have to be very small ( in the neigborhood of 5K ). There are various resizing tools available...

 http://agtalkplus.com/?q=node/2941

 http://agtalkplus.com/?q=node/2942

 ..but for now just follow the directions for creating a mapdot.... http://agtalkplus.com/?q=node/2960

 ...but instead of loading a map from website, you load a pic of yourself from your computer ( get from computer ). Disregard "Loading the Map"  and click on "Get from Computer"  then "Upload a Photo" .

Follow all the steps involving the cropping and sizing of the image as per instructions, but leave out steps 10 to 16 of "Creating your Mapdot" 

 Follow all steps of "Putting the mapdot into your NAT profile"

 That's it.

 EDIT: I just reviewed your personal photo. It is suitable for the mapdot and can be uploaded as is. Look at screenshot below for place to upload.

(mapdot help.png)

mapdot help.png (44KB - 401 downloads)