I don't claim to be an expert but I did do some clicking and tried to find what I wanted on the new version of Flickr. I took these photos with my phone of the computer screen so they are grainy - but you should be able to get the idea!
First to see photos from your contacts:
Hover over CONTACTS and a drop down menu will appear
Click RECENT PHOTOS
The photos will be sorted how you want them - I have them sorted by date uploaded and 5 per contact. The photos displayed are larger than what we were used to and if you chose one the photo will be larger and you will see the info on the photo and the contact at the bottom right side of the page. You can add comments or favorite a photo and read other comments.
If you want to see RECENT ACTIVITY on photos you have commented on -
Hover over YOU and a drop down menu will appear
Click RECENT ACTIVITY
After clicking the Recent Activity you should get a screen like this showing photos you have commented on.
Next if you want to see the recent activity in a group you are in
Hover over COMMUNITIES (I think this is what 'groups' are called now
In the drop down menu chose RECENT DISCUSSIONS
You can see in the drop down menus how to get to other places that you are familiar with - groups list, your own photo stream, searching a group. I hope this helps out some of you who are still searching the new Flickr. I knew that probably no matter how we felt about it, Flickr will keep their changes. My friend told me that they are probably gearing more toward mobile devices and and devices like iPads. Which I believe to be true as when I went to Flickr on my iPhone, I liked how it interfaced much more than previously. I can add photos to groups from a phone upload now.
Like Facebook and their constant changes, we are probably stuck with this version of Flickr so let's figure out how to best navigate and put our energy back into creativity!
Keep Calm and Quilt On!