insectivore-fare, I'm not all that familiar with these multi animal, soft pellets but personally I don't feel exotic nutrions food or treats are very good quality.
I'd suggest looking at diets specifically made for gliders that are widely used and well known like Critter Love or Bml.
As far as the fruit n veg..
None of my gliders will touch strawberries, blueberries they like, mango mine don't like much and it's a bit acidic so I don't offer it a lot, and watermelon mine all love.
blueberries, cherries, apples, papaya, cucumbers, grapes are all good ones to try
carrots, lettuce, and salad leaves.
Mine aren't a fan of raw carrots but they love baby carrots that are steamed, lettuce and salad leaves don't have much nutritional value to them.
Green beans, peas, carrots are fine but some are picky about how they are prepared, corn in moderation unless a diet specifically allows it, these are some other ones you can try.
If you get on a well know glider diet fruits and veg are listed for each diet, they help provide vitamins and minerals in the over all diet, it also takes the guess work out of what to feed. Bml is by far the easiest to prepare, and get ingredients for http://www.bmldiet.com/index.html