IMPORTANT: This is a rather different version of Chapter 1!
The original was released in 2007, but this version was uploaded in 2010. It's basically a 'remake' in many ways, though the plot and events are generally the same.
Unfortunately, your saves from the old version won't work due to the drastic differences behind the scenes, but there are enough differences, I hope, to make replaying worthwhile. Any saves you make in this version can carry over to later chapters properly.
EDIT (21st of August 2010): Sorry, there'd been bugs with this version for a long time! It's because I fixed the bugs on Kongregate and updated the version there, but didn't do so here... Now I have though, so hopefully all problems will be fixed.
Oh, but PLEASE PLEASE PLEASE make sure you have an appropriate Flash Player version! There's a screen at the start that warns you if your version is outdated. If this screen appears *at all*, then you may (probably will) experience some bizarre saving problems. Updating your Flash Player prevents them.