With the problem you are having about NEI not working, that will be because NEI is set to stay on Recipe Mode by default. If you press R while your cursor is over an item or block on the NEI interface, it will show you the recipe on how to make that item. To change the force recipe mode option, you'll have go to this directory:
%appdata%/.techniclauncher/tekkit/config/NEI.cfg and change:
lock_recipe_mode=true
to
lock_recipe_mode=false
And that should fix it.
Also, I don't really know if I'm a position to say this, but you should actually look for answers to problems with the search bar instead of posting first in the future!
http://forums.technicpack.net/index.php/topic,4193.msg25703.html#msg25703