This may get moved but in case it doesn't....
..there are two ways to post pics on this forum. The first way you already mentioned. Speaking of which, the only way you can get a 100+ K file smaller is to resize it with a graphic manipulation program. Go to download.com and look under windows utility programs for a graphics program designed to handle jpeg and bitmap pictures.
The second way involves having a picture stored on the web somewhere. Websites like huntingpictures.com and hunt101.com give you this option. All you have to do then is click this

icon and then insert the web address for you picture into the format.
Hope this helps.