Thanks for a very swift response, I have tried again with the new file and this time it worked. Sendmail still gets installed by something but it swiftly gets removed again. I am now trying to understand how it all works but I am now having another slight problem, if Applications setup center is to be believed, There is virtually no software installed, even though it is.
I have upgraded some of the software through the center and whilst it shows to the right whilst installing, it never shows as installed.
as an aside, after updating Samba to 3.4.2 through the Applications setup center, Samba would not start, a quick Google revealed the answer 'ln -s /usr/lib/libtalloc.so.1.3.0 /usr/lib/libtalloc.so.1'