Is this the best quality I can get when saving transparent images?

[capt]

It seems like I can never get good quality when saving images using transparency. Especially icon size ones. Maybe somebody can take a look and make some suggestions
on how i can improve on these. I use xara designer pro 10 all the time, mostly for mockups that dont really need to be good quality, but these do. Thanks

Attached

2 saved with transparency Gif/Png ( they look awful but best i could do )

1. xar file containing the 3 button icons I'm trying to save.

My guess is something is wrong with my saving procedure or something but im following what is said here: http://support.xara.com/index.php?/K...ticle/View/206