Thelma,
Homework Dropbox and Simple Survey should be part of dotLRN v1.0. We do use it in SloanSpace. I need to check whether it's been incorporated in the dotLRN v1.0 code base.
Event management is under development and should be available in a couple of months as part of dotLRN v1.0 release.
The Advanced Survey module has not been developed and still needs funding.
