Build Fails for VS 2008 while using Code for 2.0

[denno-secqtinstien]

Hello,
I used a code from 'instant results for ASP.NET 2.0' from IMAR Spa.... of WROX
and modified the code using VS 2005 and then build it was very good for me but
recently got the attack of folder virus. so i was to remove my VS 2005 and
Upgraded the system as well. Later on I installed VS 2008 and copied whole of
the code in to a VS 2008 Project from VS 2005 code base and modified the code
as
per my needs and published as well. But as per the
requirements Earlier this month on 1 OCT 2011, i upgraded My VS 2008 with SP1
build from Microsoft since then i am getting build failed error and also no
able
to trace any errors in it. to remove this i again removed whole of the windows
Installation and get on with initial IDE but still i am getting the same
error.
could you please tell me if the last publish on previous windows with SP1 had
wrote in my Settings files or did any others changes in my
code which is causing build failed with out any errors. because i have used
the
same code always to build. i cannot revert the changes as my code contains
more
then 1200 folders and more then 100000 files and is more then 300 MB in size.
i
have used Jquery, Javascript, Vb.net files, cs.net files, Sitemaps, DB's, etc
in
my website. please could any one help me debugging and publishing my website.

Thanks
DS