fotostream

Hi everyone

i have an iPad (bought April 2012) and an MacBookPro with OS X Lion 10.7.5 (bought August 2012). I was travelling the last 5 months and put most of my pictures on the iPad. Some of them i put into an Folder or into FotostreamFolders to share it with my family and friends at home.
Now i connected the iPad with my Mac and iPhoto imported the Pictures from the iPad - but just sorted in different dates. The pictures are out of the folders, but on the Mac / in iPhoto. But the Pictures in the PhotostreamFolders are still on my iPad. There´s no Button where i can move the pics to the Mac (even if iPhoto is open..) I don´t want to sort all Pics again and i want to keep my Photostreams. There are two other Photostreams which i got from friends - they are just on the iPad but not on the Mac. Even if i open iCloud - theres nothing with Pictures in. And i can´t accept the Photostream from my friends, even if i click on the link in the mail - it just says i should open iCloud and there should be the Photostream.

The next thing is, that i imported a lot of pictures from my MemoryCards - they are all on the Mac, but if i look to the icons it shows me all the time the same picures - if i open the picture than there´s the "normal" picture. Thats so weird!!!

I hope somenone can help me?!

Thanks