PLease stop force weaning them! First off!
They will not be fully weaned till about 3 months OOP!!!! This is NORMAL! Feeding them puppy milk replacer and solids you very well could kill them. They need thier mothers milk still. They will start weaning at about 2 months OOP. But STILL need moms milk. At about 3 months OOP it is USUALLY safe to sell them. They will wean at thier own pace as thier tummies are not yet built to handle solids. And NEVER built to handle puppy milk replacer or any other replacers. Glider milk is so much different from other animals. It would be hard to match it right. It should only be used in extreme cases like the parents dying or somthing. And there is still a good chance of them dying because its just not what they need. Please stop now before its too late. These poor guys need thier mothers!!!
And dont worry bout mom and dad, they are not going to get tired of it. This is all NORMAL. You can still handle them, just make sure they get plenty of eating time with mom and warmth from thier familly in the pouch. They do not want to leave the pouch...this is where thier familly is, and where they would stay in the wild while thier parents go out to eat, they stay nestled in thier home where it is safe and warm. When they are ready, they will come out and start investigating. PLease dont force wean them. Please please please. This is so hard onthem, and can easilly end up killing them.
I hope you will take what I have said seriously. I am not trying to flame you or come down on you, I just want to help your babies before its too late. 

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Zoooooooooooooooocrazy lady
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1.1 Lavender Albino Brooksi Kingsnakes
1.1 Het for Snow Brooksi Kingsnakes
1.1 Leucistic Texas Ratsnakes
1.1 Albino Kenyan Sand Boas
1.2 Black Ratsnakes
1.1 Western Diamondback Rattlesnakes
1.2 Green Tree Vipers
2.0 Speckled Rattlesnakes
0.0.7 Great Basin Rattlesnakes
0.0.1 Western Gophersnake
0.1 Wagglers Temple Viper
0.1 Kenyan Sand Boa
0.1 Green Anaconda
A whole bunch of rats and mice
1.1 Coatimundi
1.3 Sugar Gliders and a LOT of babies!!!! =)
1 Usambra Starburst Tarrantula
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