Hi mate,
Considering the amount is so small, 14 MB, it is possible that it is traffic from one client directly to another, handshakes etc, and not between the tracker and client, hence it's not counted on tracker. Still it is not a perfect explanation. It can also be the client that is not sending proper stats to the tracker. Very hard to say after so little time I suppose. Unfortunately I do not have any experience with Tixati myself and I don't know if it works as it should, but judging from official the website it seems ok.... but I would still recommend using a client like uTorrent before anything else due to the stability of the client.
The best uTorrent client in my humble opinion is the 2.2.1
http://www.oldversion.com/windows/utorrent-2-2-1-2 because it works perfectly, gives good speeds etc, and it has no advertisements.
Let me know how your stats look further ahead when you have uploaded a little more.