That is really weird. The thing that confuses me though is that your first pictures show with intense colours and they're on photobucket too. I wonder if they've changed something, adding some kind of lossy compression or something?? Very odd. Maybe try uploading to the photo gallery here and try again?

my first clam. nervous about getting one but now i am glad i have one. would like to have another

http://i9.photobucket.com/albums/a77...Picture658.jpg

Clams !
 

Top View
http://i38.photobucket.com/albums/e1...0/IMG_1094.jpg

Front View
http://i38.photobucket.com/albums/e1...0/IMG_1095.jpg

Squamosas
http://i156.photobucket.com/albums/t4/jkhchris/sqam.jpg
http://i156.photobucket.com/albums/t...hris/squam.jpg

Croceas
http://i156.photobucket.com/albums/t4/jkhchris/h.jpg
http://i156.photobucket.com/albums/t...ris/crocea.jpg

Derasa
http://i156.photobucket.com/albums/t...ris/derasa.jpg

http://i116.photobucket.com/albums/o...e/IMGP2474.jpg
http://i116.photobucket.com/albums/o...e/IMGP2563.jpg
http://i116.photobucket.com/albums/o...e/IMGP2580.jpg
http://i116.photobucket.com/albums/o...e/IMGP2562.jpg
http://i116.photobucket.com/albums/o...e/IMGP2477.jpg
http://i116.photobucket.com/albums/o...e/IMGP2553.jpg
http://i116.photobucket.com/albums/o...e/IMGP2591.jpg