Lego :Robolab 2.5.1 patch download

Hello,
I purchased Robolab 2.5 from pitsco lego-dacta quite some time ago. I'm 
looking for the patch to upgrade to version 2.5.1, I can find the patch 
for 2.5.2 and 2.5.3 but not 2.5.1 or 2.5.4. Could anyone help me with 
this? I'm having some problems related to the vision, I can't detect any 
cameras that are connected, and the 2 imaging devices that it does 
detect is an Intelplay microscope, and a Microsoft WDM driver (which I 
do not know what device it is). Both return a "fuzzy" picture with 
diaganol lines, resembling a TV recieving static, which is surprising to 
me. I have a Legocam and a Intel Pro camera.
Thank you in advance.
 Gustavo