This is NOT search. This is for asking (creating) questions. The search is there: ↑↑

Yes, as long as a file is saved on your Xbox/PC you can choose it as the beginning for your continuation into ME2.

Mass effect 2 will have to go by your last play-through of the game, so yes, he will be available. However, It has been said that some of the previous characters will only have minor appearances, and not be main party members.