i use http://wordpress.org/extend/plugins/nextgen-gallery-sidebar-widget/
gallery-options-thumbnails is set to 100×100 which is ok for my gallery page using shortcode
BUT it is not ok for my sidebar widget thumbnails which i need to be 220×165, right now as i understand 100×100 thumbnails is used and streched to 220×165 needles to say it looks bad and distorted
ok, but problem is i need one set of thumbnails from same gallerie
for 100×100 gallerie on pgae
and other set of thumbnals 220×165 for sidebar widget
creating new thumbnails i just change from one size to another, no?