[rogerinnyc]

Wow. Tough crowd here today. I have a Kobo and decided I wanted to play with my KV again and was disappointed to see the difficulties with 5.9.2.0.1. But, the info is here, assuming you were already jailbroken...
1. You need Coplate's Hotfix update: Update_jailbreak_hotfix_1.14_nomax_install.bin. Put that into your uppermost root directory and then run System Update from settings.
2. You need the Kual zip package (forget where it is) and install that through mrpackages. You initiate it with a ;log mrpi instruction in the search bar, since your existing KUAL file won't open.
3. You should get a useful Kual thumbnail in your homepage after that and can re-install your various hacks as normal, e.g., python and screensaver, fonts hack, etc.

Hope that helps.