That (29) does not mean there are 29 tasks from Outlook to come over. It simply means there are (29) outstanding 'unsynced items'. From the shot I can see you deleted the built-in project 'To get you started', doing so will generate that many unsynced items (the number does not necessarily reflect the number of tasks in 2Do but also other things like tags, alarms etc which need to be synced). So for example if you had 30 tasks synced and deleted 1 task in 2Do, the counter would say something like (1) meaning there's '1 unsynced item' ready to be synced.
Back to your other question, Shelley was trying to explain that 2Do syncs with Outlook 'Tasks', meaning there's a special 'Tasks' section in Outlook (on the side-bar) that it syncs against. Any item you add to 2Do will appear there once sync successfully completes. You need to tap 'Sync' to sync changes over to Outlook once you've setup a connection (provided you've downloaded and installed the Sync Helper app on your PC). 2Do will not sync with events that are in your Outlook 'Calendar' (note: events are different from tasks/todos).
Try added a task to 2Do, tap 'Sync' and ensure it connects to your PC and performs syncs successfully. Then look under the 'Tasks' section in Outlook. Please see this for more details:http://www.guidedways.com/kb/article-410.html