Just to be clear about the problem you're reporting.  
1.  Documents with different font sizes (see abi/src/wp/samples) should 
display correctly, ie, in different sizes.  If not, that's a new problem we 
need to look into. 
2.  However, I expect that you currently can't use the cool new GTK font 
dialog to change the font size (or anything else) in *your* documents, 
because the last time I checked, it isn't hooked up yet.  You can confirm 
this by either looking at the saved documents -- the XML is pretty easy to 
read -- or by looking at the _chooseFont() functions in the DLGHACK section 
at the bottom of abi/src/wp/ap/xp/ap_EditMethods.cpp
>Paul: Looks like your changes didn't make last night's cvs update. I saw just
>one minor change from the previous day.
Thanks for checking.  Then it should be in tonight's update instead.  
Paul