Trouble with alpha channels - photoshop/AGS?

[Play_Pretend]

This was an issue for me for a while, but I sorted it out to my own satisfaction...I use PaintShop Pro 7, and save all my sprites as PNGs before I import them into AGS.  When I draw my stuff (using vector graphics) I check off Anti-Alias, then select Export, PNG Optimizer off the File Menu, and make sure it's got Alpha Channel Transparency: Existing Image or Layer Transparency selected, then save it as a PNG.  When I upload it to AGS, I click yes for use alpha channel, and it's never given me any problems.