What I finally did was use the <BR> around my marquee boxes and lettering instead of <P>
Then I am stuck with the same other mess
So after I type my information I switch to Design Mode and I just work there by deleting spaces, etc
Since most of the items I list are in groups I just click on Create a Similar Listing so when it opens I just switch to Design Mode and delete the title and add the new one. Then I just delete whatever I need to replace.
This is my solution until their programmers try something else and hoping they get lucky. Maybe they will stumble back to the old editor!