Label Problem - width - urgent!!!

Hi i'm having a problem on my site ...
Please help : this is the old file http://www.impactis.net/site/trial.asp?app=designer
The new one should be the same as before but with more field.
Is it possible to change the label size: in exemple : (Do you currently have any Impact 8.x or 9.x software installed?) should be on 2 line
Thanks

Jonathan