Even on a 22" screen, I get only three lines displayed in the option field and
it is very hard to scroll down to the correct version (there are hundreds of
entries). I can't use the scroll bar, just the mousewheel is usable in this
state.

And then it takes some time to undertand the system of the tags offered.

At least there should be a larger option list box, maybe this field could be
split to major version and subversion.

When I choose other components (like here -- there should actually be a
"bugzilla" component!), those versions might be out of sense...

Cheers.