There is a special mechanism to report bugs available. You can create tickets (if not let me know so I'll reconfigure things a bit) and that would make things easier for me because I would have a clear list of things which require fixing, improving etc. When I go through mails and forum I sometimes forget about something important and so it stays unfixed.
Of course you can post here as well (eg. in a more detailed way) but I'll be really thankful if you could report issues there.