New really tiny µTorrent hardware!
It takes up to a few minutes for the download and upload to reach 0 in paused mode, since µTorrent must send/receive all the queued pieces first.
µTorrent shows BitTorrent protocol overhead when displaying speeds; this is normal.
µTorrent shows an ETA/Remaining time when seeding based off the ratio set in "Seeding Priority," so you can know about how long it'll take to reach the specified ratio.
The up/down buttons only change the queue order for torrents that are downloading. They do not actually move the torrents up and down in the list.
Make sure the "Associate with .torrent files" button is greyed out in the General section of the options. If it is and Firefox gives you errors like "Invalid menu handle" when opening the .torrent or opens another client, click (within Firefox) Tools -> Options -> Applications, remove TORRENT from the list and hit OK. If it is Explorer or other programs giving the error, you may need to right click a .torrent file, Open With -> Browse, look for µTorrent and check "Always use the selected program to open this kind of file." If all else fails, click (within Explorer) Tools -> Folder Options -> File Types, and remove TORRENT from the list. Then try to use the "Associate with .torrent files" button again.