First of all, thank you for answering. Appreciate =}
I've just got my Mac and learning how to be friends with it. I DO make things way too complicated. I am changing the workflow now and really want to fix the things that are messed up already.
My initial Camera-Raw format is CR2 - one of Canon-Raw's that CS4 is bad with.)
So:
I used to import CR2's into iPhoto, and when wanted to edit them in Photoshop, had to export them into a separate folder(Option-drag), convert into DNG's and open in the Photoshop.
Saved them as .psd or .jpg in the folder and then importer back into iPhoto, if needed.)
Now I've decided to simpIify the proces a little:
From the sd-card I just copied the files into a new folder on the desktop.
Converted them into DNGs and imported into iPhoto.
And that is where the trap is! Now I can not send the file into Photoshop and can not Option-drag the "supposed-to-be" DNG-file out of IPhoto.
And Safari can not open your link --- the user tip .
Please, advise. Thank you very much.