I uninstalled the old one, updated SVN, opened compiled and installed r4621 but looks to be having the same behavior, is there some way I can confirm that the package I'm using is the correct one?
-- Edit
I created a new application, placed a button and a TRichMemo, added a long text, and on the button click handler I do this:
RichMemo1.WordWrap:=false;
RichMemo1.ScrollBars:= ssAutoBoth;
WordWrap turns off, but scrollbars don't seem to work, they also don't work if I set scrollbar option in the object inspector.