Hi
ismail selman kimyacioglu wrote:
You said that in order to remove the widget, I need to expand it in the sidebar. The problem is when I expand all the positions, I cannot see the standard widgets. 2 days ago, after my first post, I downloaded a plugin "Widget Logic" and with this one, it is easier to place the widgets indeed. However, still I cannot see the standard ones in the positions. For instance, Tags widget. Suppose that I want to take it from left to right. But it is not possible. By the way, by experimenting, I found something. However, I am not sure whether it is the actual or regular way or not. For instance, instead of removing the widgets on the right panel one by one, I placed a new widget and then all of them disappeared and my new widget is placed.
That's why you have the "Over ..." and "Under ..." widget positions - to position your widgets over or under the default content. Placing widgets in "Main Menu" or "Right Menu" will hide the default content of these sidebars. It's described in the tutorials 
Jakub Baran wrote:
Dragging widgets to Main Menu, Page Menu, Right Menu, Top, Bottom and Footer 1-3 sections will hide the default content of those sections and display your widget instead
ismail selman kimyacioglu wrote:
2. For the showcase category, I had started from the scratch and didn't install the samples. So, there was no showcase category at all. In the meantime, still I am not sure how I removed it. But thank you very much for this information. At least I know how to activate it.
There has to be a category assigned in the Afterburner Settings to the showcase position. Every post from that category will be displayed randomly in the showcase section. It's all that user needs to know
There's no magic behind it 
ismail selman kimyacioglu wrote:
What do you think about the first two items ?
Which first two items ? 
ismail selman kimyacioglu wrote:
I have added Aweber subscribe module by placing a text widget to the over right menu. And now, I have the showcase again. In the meantime, please note that still there is only category called News.
Sorry but I really don't understand what you got on your mind. Can you please explain it a little bit more to me ?
Cheers
Jakub