Oh my how I LOVE Hidden Springs!!!! It's smoother game play than Bridgeport...it loads SO much quicker and I have NO game lag!! I'm totally in love with it! Not to mention I love the view, some of the back unpaved roads and more lot space!!!! Plenty to do, I haven't even fully been through the whole world yet but so far I'm loving it!!
I'm not sure what you mean when you say your sim pictures are not showing up, but if it happened when you went to save your sims so you could move them over to HS don't worry about it. I did this and some of the icons didn't show up but if you hover over them with the mouse pointer the icon still is active.
I moved all my sims, houses and families over to HS with the only problem being that they didn't show up in some of the icons when I went to move them..
They are still there!! Like I said, hover over them and if your pointer reacts you are totally fine and once you get to HS they will show up!!!