Much better! I should have checked the html myself... So to recap:

1. As only linca had the sense to check and find out, you embedded the flickr thumbnails instead of the uploaded images themselves.

2. What that basic html code you took from the New User Guide does is embed the image you link to: e.g., tell browsers to go to the image file hosted on Flickr, and display it in the page expanded to the specified width. In other words, that's only a display function, the file remains the same. (Unlike when you send an email: then you copy the actual file into the email.)

3. If you have versions of your image 600 pixels wide or less, you don't need to add width="600" or similar into the image embedding html code (e.g. <img src="http://farm3.static.flickr.com/2225/1813546032_94a5bcb103.jpg"> is enough for the above).

The original has a size of 195kB -- definitely too big. I don't know what settings FlickrExport offers, but there could be two reasons:

1. the re-sized jpg image is saved with not much compression (say at 95%, where 85% would be ideal),
   
2. it is usually a good idea to sharpen a re-sized image, maybe FlickrExport does that automatically, but does so too strongly.