In Opera, the first time we open the amap editor page, an error pop ups.

Another problem is that the ability to draw tiles without clicking over and over is extremly slow with the Alt G key. Shift works fine but the other one causes extreme CPU usage

Ah, I forgot to fix this error. This error doesn't cause any problems though.
And yeah, currently changing a tile refreshes all 96 tiles. I will minimize the cpu usage by shrinking the refreshing to only necessary things with the next update.
Thanks for these bug reports.

Well, the thing I am concerned about is that when I use Shift, it's really fast. I can change plenty of tiles in a second or two. It's when I use the 2nd sprite key that is the problem. Is it because both use a different routine?

Anyway there's a news now http://ourl.ca/11238/212702

The news article is totally fair It was also added in the Misc page

I saw this from the news, article looks promising. In A-map when I try selecting the default tiles it seems the tile selection is broken. It often gives me a different tile from what I select. This is using Fire Fox 3.6.17 A sprite seems quite nice. The only issue I had with it was that I couldn't get the preview window to close. I may test in IE and chrome later and give more feedback. I'll also try with a fresh Fire Fox session later.

I don't have to use this but I was just trying the spriter out: http://xeverion.com/Tools/Asprite/
But everywhere I click nothing happens(it stays white). Am I doing something wrong?

Using the left mouse button should color the pixels black.
Which browser did you use?

I'm using Safari Version 5.0.3(Mac)

I installed Safari to try Asprite on it,
and it is actually not working, sorry.

The Safari Bug will be fixed soon.