I may be going to Jiuzhaigou at the end of September or beginning of October 2010. I wish to know if:

1) the road conditions are safe (due to the recent heavy rain and landslide) so that I can travel by bus and back from/to Chengdu
2) is this the best time where I get to see the entire park in full (gold, yellow, orange, pink, red, etc) colours
3) what will the temperature be like during this time of the year