I'm not familiar with how difficult making a website is and all. However, I owuld love a search function with the sightings which could let us sort by state and then by a date range. Thus I could see all that is currently in my area. I twould make the function a lot more user friendly imo.
Ofcourse, as I said, I do not know how complicated this would be. Just an idea.
Seibs and the rest of the Mods have discussed this before and it is one of the many many upgrades we plan on doing to the site in the future. I personally push the hell out of the sightings section, so I too have a "bigger and brighter" ideas for the sightings section. I would like to see the same things you have mentioned along with a graph of what was sighted and by who and how many sightings each user has posted. Perhaps also a sort of "estimate generator" that would let fans get a rough idea of when the newest figures might be arriving based on a sightings formula. Again, all nice ideas, just needs time to cook.
As for sightings, I wouldn't mind seeing WW Megatron and G1 Magnus in there for the Titaniums, as I should be able to pick them up in Toronto either this wednesday or next.