Upload the photos to a site for photo storage i.e. www.photobucket.com
Setup an account (free) and you will then have a URL for each picture.
Now post that URL and highlight it then press the IMG tag at the top.
If using photobucket the bottom URL for each photo already has the IMG tags round it so just paste that to the gallery.
Dewy has described how to include an image in a message.
To upload photos to the gallery is free and does not require a paid site such as photobucket or pbase.
This post expalins how to upload to the gallery but you will need to do a find for Alternatively (In Explorer Edit and Find on this page) and you should see, "Alternatively, it is free here on UK_Workshop. It's just a bit complicated............"