I am totally new to LimeSurvey as of half-an-hour ago.

It seems like a terrific project but you guys really need to change the icons in the Admin GUI; it looks like something my eight year old would use in school and almost put me off looking any deeper

They really don't give the deserved impression.

I haven't figured out yet how to make a conditional jump to a new group based on the result of a question (only how to make a question conditionally appear within a group) but I can't believe that it's not there somewhere.

Very nice work though - thank-you.

1. Which version do you use?
2. Conditions on groups -> see www.limesurvey.org/component/option,com_...11751/lang,en/#11782
3. Interface design: You are right. Check out design.limesurvey.org (some examples of the new limesurvey 2.0 design)