Assuming you are using SD2Vita only , and no PSVSD, this gamesd.skprx build was build by the Fl0w, the developer behind vita cfw. You can try this gamesd.skprx
https://github.com/xyzz/gamecard-microsd/releases
In term of config text, I think you should have the config text running off ux0, instead of ur0 or imc0. In my PS TV case I have mine running off ux0, I believe. I guess just put config text in all three area, correct location should be ux0, I guess, because if there isnt a config text in ux0 , then it will run it off ur0.