it was A.q.Khan and whoever else was involved with him that screwed Pakistan by doing clandestine deals with Libya N.Korea etc. Once that gpt exposed, the only way Musharaf or anyone else could have brought Pakistan out of nuclear paria status would be to give up the nuke weapons program, submoit to complete foreign supervision of civilian use etc. Obviously he wasn't going to do that.
Just like ISI leads along with some jihadis screwed up Pakistan on the terror side, AQK alongwith his sidekicks did that on the nuke front.
Now, did Musharaf know abt what aqk was upto? Probably. But the main culprit was aqk and not musharaf
When a ship sinks, the captain is liable. Musharraf was the country's military chief and self proclaimed president when all this happened. He was already responsible for a failed confrontation with India. He was the most important part of this proliferation, as it wasnt a one man show. His kursi mattered so much to him that he wasnt sincere to the country, nor was he sincere to his western masters, let alone him being sincere to the trouble makers in our own country. Whats shameful is that he still intends to hang on to his kursi.