Hi,I met the same questions too.

I can find some of the MRI scan parameters in the web site " http://fcon_1000.projects.nitrc.org/indi... ", but some sites' scan parameters  are not available.
As for the labels of patients and healthy controls,you can download the pre-processed data (zip-file) from the dataset to find the information.
I think it's a time consuming job to reorganize the raw data and preprocessing by yourself instead of using the already pre-processed data available online.
If you can find all the sites' scan parameters of fMRI and 3DT1 , I would be very grateful to be shared with.