I am not experiencing the problems you have. This is what I do:
-Select group from left, e.g. Games
-Click New Item
-Fill out info
-Go Activities->Applications. Now all applications disappear for a moment and then I can see my new item.
Maybe try logging out and back in to update the Applications menu?
(side note: I don't think my name has even been written correct on these forums. What's up with english speakers and double i's and k's