Please show the code that isn't working for you or I'm going to close this issue. I've never heard of anyone having such a fundamental problem, and I support a number of developers who use Glide every day.
The Tweener does not update automatically; you'll need to make a call to tweener.Update(time) in your main loop. Time can be anything; I use fractional seconds in a float, but I know of people who pass elapsed frames. As long as you keep it consistent throughout your application you won't have a problem.
allTweens is modified at the beginning of the Update step. This is necessary to prevent errors when collections are modified during iteration. If you never update the tweener, it will never contain anything and your objects will not be updated.