Quick reply...
Image? What is image?
Since the links at wiki don't work, I guess you want to install community-ssu-enabler from temporary repos, but I don't guarantee it will work. I haven't used temporary repositories yet, and I had installed CSSU-testing long ago.
I do not use multiboot, much less this ...mobile-phone-based pentesting platform..., so I cannot say yes or no.
Wiki.maemo.org is the best resource on Maemo-related topics, I would say... So, if you see some information missing in it, you are welcome to add.
Best wishes. Thank you.
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Per aspera ad astra...