George,
Sorry for not addressing this sooner. Regarding the first post, yes, you can adjust the colors. Providing that the Avery palette is loaded as the current shop palette, and with nothing selected, double left click on the color swatch and adjust the sliders/data values to where it looks closer. Inside version 6 there is no “one button” solution to adjust on screen colors.
You may want to save a “copy” of the palette and work on that “saved” version, thereby keeping your original palette in tact in case it is needed in the future. Outside of adjusting yourself, not anything I’m aware of.
Regarding your second post, I think your “original” A8-O pallet may have been over written or some other similar action. No, it does not require a complete re-install to restore the palette. Since you indicated your colors looked “off” anyway, send me your email address (PM it or send it direct) and I’ll provide you with something I think you may be much happier with. If you don’t like it, we’ll restore your original A8-O palette.