SQL Server 2005 SP2a Product Samples are now released on CodePlex (http://codeplex.com/SqlServerSamples). The only change from the previous release is that the sample installers now have a EULA which is consistent with the MS-PL license we have on CodePlex. See the license tab in each project for the exact details.
This license change will make it easier for people who want to create derivative works from the samples to comply with the license and it cleans up the situation where CodePlex had one license and the installers had a slightly different one.
There are no changes to the samples themselves and there is no need to redownload them.