Hi Anthony,
I am sure that Spacekid must have been in a hurry to leave you so curt a response, my apologies.
I believe that this will answer your question,
http://msdn.microsoft.com/vstudio/su...l/default.aspx, although it refers only to 2005 versions, I would still take that to mean that, yes, you should thouroughly unistall Version 6 prior to installation of .net.
Hope that answers your question. Please let us know how the install goes.
Looking forward to your reply,
TTFN
LGW