I have been given a task to migrate 2005 packages to 2008, I was looking for discontinued features by SSIS 2008 on http://technet.microsoft.com/en-us/library/bb500429(v=sql.100).aspx It seems VSA is discontinued and replace by VSTA. As I am doing such work first time I just wanted to check opening packages BIDS 2008 and then deploying them in 2008 enviorment will do or I will need to some other stuff also?
To me, the VSA -> VSTA change you just mentioned simply means that now we can code in C# :D
Overall, to migrate you just need to opne the package on BIDS 2008, but there are a few things you need to take care yourself. What it comes to my mind for example is the behavior of lookup tasks have changed a little (the way no match rows are treated) and the order variables are loaded from config files changed too. I mean, just by running and debugig your pakcages you should be able to test these kind of things