My application is leaking memory!

Hey.
I have been reading through most of the posts on Garbage Collection and Memory Management is Flash. Most of them are a year old. I wanted to ask if this problem is fixed? If not, can anyone tell me whether the issues with Loader class having memory leaks have a workaround? The delete keyword(I cannot delete an object which i made with new)?

Also, is there a way to know WHEN IF the garbage collector is called, and is there a way to force it?