Yeah, I would say that your controller has scr**ed the pooch. The PIC cannot get hot enough to feel through the controller body and 'melt' (I am assuming when you said glue, you really meant melt) something without damaging itself and the controller too.
Someone may be able to offer advice. To start with, remove all wiring and try it out again to see if your controller can be salvaged.
At worst case, you only damaged the guts of the controller. You can buy a new one for $40 from amazon or a used one from gamestop and just transplant the internals to keep your special edition body.