besides the question of manpower and/or willingness to change the appearance of the site: have you considered that some (or even many) of us monks like the current interface? I want to communicate about a language I use for scripts, so a text-oriented interface seems to fit. And I see no benefit of pictures, flashing, mouseover-activities etc.. So for me it is OK.
Recently our company-intranet got re-designed. Yes - it looks better now, with all these huge pictures, and even decent animations, and many white areas so the site doesn't look crowded. You can see that it is the work of some professional designers. However the space for text is much smaller now, so I have to scroll a lot to read the articles or to find the information I need.
I prefer functionality over modern optics, and that's why I see no need to change an interface that has been proven suitable since 15 years... but maybe I'm just getting old ;-)
Have a nice day! Rata