Dragon Dictation Instructions?

Hi - I've recently installed Dragon Dictation on my iPod Touch 4th gen, and like it very much. However, I need some instruction and don't know where to find it. How does one 'train' it for certain words and names? I have an uncommon name that is similar to one found in Dragon's 'dictionary(?)' but spelled differently - how can I get it to always use my spelling instead of the default? I always replace the text with my spelling (which it now suggests when I select the text), but it does not ever use that spelling unless I replace it.

What does it mean when a dictated word is underlined in red?

What is the purpose of the light blue word suggestion that pops up? If I try to select it, it just goes away. It is different from the dark blue list which does let me select a particular word.

If I replace text that was dictated, does Dragon 'train' itself to match that with my audio for that word?

Great product, but I don't know where to find answers for things like this.

Message was edited by: PhilsiPodTouch