You will not Find any picture of a Pakistani Presidential / Prime minister Body Guard , If a Guard is Identified he is Removed from the Detail.
Everytime Zardari goes to larkana or somewhere, there are bodyguards very visible, with the little ear-piece, and once I even saw a hand-gun inside his coat. They are the same most of the time.
And the Army convoys are only deployed sometimes, not always with the President/PM. And as you said, SSG don't protect civilian people, the thing with Musharraf was that he was COAS and President.
Another tid bit, the only people authorized a bullet proof car on public money are president, PM and (COAS or CJCSC, i cant remember which one). Except these three people, nobody is authorized a BP car, although they do move in one. It was again, after Musharraf that it happened, and COAS and other top army officials used them. Even the Sindh CM has one, and he has the newest Mercedes S-class, all bullet proof. So does Rehman Malik (heck, there is even a mobile jammer in his convoy)!
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Some info on the US presidential car, AKA The Beast:
1- Completely sound proof. The president uses a microphone to communicate with the outside.
2- Safe from Chem/Bio attacks.
3- Special oxygen system.
4- A shotgun beneath the second seat.
5- Run flat tires.
6- A blood bank, having the blood of the same group as the president.
7- NVG cameras on the front bumper, and a tear gas ejector as well.