Your pictures are very small. it will be great if you resize them. thanks!
On the other hand, I find it a pain in the @ss clicking on thumbnails (so I don't). I just want it to scroll, you have to scroll anyway…I think you should be able to click on the thumbnail image to get the large one?, and click again for the full-size? I hate adding full size as it makes for a lot of scrolling through images on the desktop.
OT: I think most are more used to the scrolling business here. I have to say though, tripwire-san's method seems a much cleaner and better way utilize screen space real estate, IMO.So basically it comes down to personal preference and everyone should respect each others posting style