You can post links like google.com which will be rendered as text but you will not be able to post messages that contain complete URLs like www.google.comThank you for your understanding!
If you need a custom theme or a design implementing I am available to help.
I have setup a dummy Jobberbase site with a custom theme at the following link:
The above example took me two days to implement including the design my daily rate is £100.
If you are interested please contact me at jobber[at]website-designer-uk[dot]co[dot]uk