Hello Matej,
the "km, " that you see below the map comes from the layout template.
Layout template #1 looks like this:
<div class="gpxtrack">
<div class="gpxtracklink">%TRACKDOWNLOAD%</div>
<div class="gpxtrackmap">%TRACKMAP%</div>
<div class="gpxtrackinfo"><p>%DISTANCE-KM% km, %DURATION%</p></div>
<div class="gpxtrackdiagram">%TRACKDIAGRAM%</div>
</div>
You should copy the template1.html to e.g. your Joomla! template directory and just delete the line
<div class="gpxtrackinfo"><p>%DISTANCE-KM% km, %DURATION%</p></div>
from your copy. See
here
for more infos on using your own customized layout templates (and read the red Note in there!).
As for the zoomout - this is a weird behaviour of OpenLayers that i can't change: with some tracks, the automatic zooming works, but with others it is off by one zoom level.
You can leave the default set to 0 in the Plugin configuration. For the tracks that DON'T work, just add the following in the invocation code:
{gpxtrackmap}MTB_bp_kanin.gpx,zoomout=1{/gpxtrackmap}
That way, you can "fine-tune" the zoomout for each track individually.
cheers, Frank