Hi,
The template editor has two different tags availabe for original size images:
[IMAGE1_ORG] "Images as they are, with no resizing or links to supersize."
[IMAGE1_URL] "Insert image URL only. User will be responsible for all HTML img tags."
Those examples are for image #1 with 1 to 24 available for their code builder.
The "Choose Image Type:" drop-down selector at lower left on the page allows for switch to the various types.
Danno