Dear Chao-Gan,
Kawashima lab (Valdes-Hernandez et al.) has some templates as well as tissue probability maps. For details see http://www.idac.tohoku.ac.jp/bir/en/db/rb/ , basically you have to fill in two forms and then they send the files to you (maybe it's automatic by now, dunno).
Nie et al. (2013, Human Brain Mapping) provide another template, please contact the senior author Baoci Shan for further information (his mail address is given in the paper). I received a copy of their templates this way. Here's a PDF about their toolbox http://mrrcwiki.einstein.yu.edu/images/5/51/SPMRATIHEP.pdf As far as I remember they have been/are working on tissue probability maps as well.
Alternatively, you might want to try rSPM, which allows deformation-based normalisation and might be useful if your data doesn't have enough contrast to ensure a good segmentation http://dbm.neuro.uni-jena.de/rSPM/ The approach is described in Gaser et al. (2012, Neuroimage).
Best,
Helmut
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