granitz,
I don't think our problem with these features is due only to our inexperience. I've repeatedly read the instructions and find inconsistencies.
I believe, for example, to modify preferences, you select "preferences," then click on "edit." I personally have no "edit" upon which to click!
This evening I went directly to MyPop page which showed no new posts and no updates. Of course there are some.
SEARCH has worked fine for me, too.
Perhaps Adam R. will check into the Pop thing for us.
Neva