In reply to deadpoet: Tried it one December in the mid 90s so this will have absolutely no relevance to a summer trip.
We used Jasmine Tours who were pleasant to deal with and did everything that was required of them without any fuss or problem.
KKH was closed by the Mujahedin so we ended up flying up to Gilgit to buy supplies, then a short jeep ride to Minapin village where we arranged porters
People in Minapin were great,really helpful, friendly and good porters for the 2 day walk up to the BC ( insisted we watch Neighbours on the only telly in the village + suggested we come back on a Saturday as that was when Baywatch was on- the longer the trip went on the more that option appealed !)
As far as the trip went, minus 25c and lower at BC was daunting, vast amounts of waist deep unconsolidated snow meant that, what is a 5 hour walk across the glacier to C1 in summer, took us 4 days of really hard slog. Avalanches pouring off Rakaposhi to our right were discouraging,avalanches pouring down the main icefall towards us were a bigger problem though. Fortunately at that point sanity took over and we retreated to the relative 'warmth' of BC
All in all it was genuinely a great trip.Its a fantastic area with good people and appears to be a reasonably safe (in summer) mountain.
Doug Scott has a bit about it in his book Himalayan climber
I think Simon Yates went in summer 2000 he may be able to give you more relevant info on it
