[Frosty Crunch]

The Getting Things Done book goes through how to deal with a lot of tasks.

For instance, one technique is "Don't Do Them." Chuck tasks in the trash or a reference file or delegate them.

For Projects, only show the next action.

For stuff that doesn't need to be done right away, put a start date on it for when it needs to be done. For stuff that needs to be done by a certain data, likewise, with a due date.

If you still have too much to do, then you need go through another GTD cycle and put more stuff in the "Don't Do Them" category. You can't do more than you can do, and a task management system won't change that. Stuff you might like to do but don't have time for you just have to give up on, in order to actually make progress on more important stuff.

If you've really gone through the GTD process, none of this should be a problem. As they say in IRC, "Read the ... Manual" ;-). You need to read the instructions before using the tool.