Musharraf didn’t compare himself to Clinton, rather the CEO of a public relations firm that handles Clinton made that comparison. When you have that level of expertise, then you can offer an opinion that actually matters about whether Musharraf should be as valuable as Clinton or not.
Even just looking briefly through google news, one finds Musharraf giving private speeches over the past 6 months at locations varying from the US (at the World Affairs Council in Jaauary 2009) to France (At the French Institute of International Relations and in Prague this week.