By text boxes, I assume you mean titles. Do you understand how to create and edit a title?
Once you create a title on your timeline, it's just like any other clip. You can add transitions or fade ins/outs to it.
Maybe as a new guy you should start with my free 8 part Basic Training tutorials. Part 7 shows you how to add and edit titles.
If you've got any specific questions, please ask. It's easier to answer a question than it is to respond to an "I'm having difficulty" comment.
No, I'm not talking about titles, I'm talking about text boxes. I'm trying to put a text box on top of a video to explain what is happening in the video. I'd like to be able to give them a time duration and then disappear until the next text box is needed. It is easy to do in Windows movie maker, so why is it so hard to do in Premiere? So far the program is more of a pain than it is worth. I know it can do a lot of fancy things, but why is the simple stuff so complicated?
The text box you are describing is called a title. You can place a text-only title over a video by selecting the New Title option from under the Text menu at the top of the program.
Have you looked at my Basic Training Part 7 tutorial?