Which version (portable/setup) are you using?
If you use the installer version, then your data will be stored inside the user folder. Which means each user will have it's own datafile. The default location/filename is:
C:\Documents and Settings\<User>\Application Data\Wieldy\Local.dat

Did you change the file location inside the settings of Wieldy?
Did you ensure that Wieldy is started with the same user?

Duplicated request.
See: http://wieldy.userecho.com/topic/44531-star-taskstoday-should-appear-ahead-of-other-task-in-the-the-task-list/

Thanks for using Wieldy and providing me your feedback.
I hope to further improve Wieldy, so you will learn faster on how to use the not so obvious features.

Thanks for the suggestion, i will consider changing the logic.

I know. Unfortunately i haven't found a good looking highres icon library which can be used for free. That's why i'm sticking with the current icon set. But i know that the scaled icons do not look that good.

Thanks for your feedback. I hope that Version 0.3.0 is running smooth and stable.

There are many different request to synchronize Wieldy with various online services and tools. I hope i can provide a few more synchronizers in the future.

Due to my limited time i hope other users will provide synchronization addins for Wieldy too. That's why i released a simple API:
http://wieldy.de/index.php?slab=slabid-13

Currently there is no done flag for a project. Actually when you finished your project, you have to delete it.