again the same like on the other (from area) wrong board - which you liked to state "not helpful" for you.
this is the archive Pilsen you need(former german name)/ Plzeň (present czech name)- if you like to ask directly. otherwise you can take for parts you interested an translator too. we also do sometimes when we do not understand a language:http://www.genealogienetz.de/reg/SUD/crarch-list.html#g1
this is the ENGLISH info for using the online-files there:https://familysearch.org/learn/wiki/en/Czech_Republic_Church
if you have problems with that maybe take then a professionell researcher:http://www.family-lines.cz/
persons being direct from there and being specialists for Pilsen-archive would be Mrs. Marcela Fremrová. Mr. Jan Niebauer, Dr. Ilona Kloubcová - to find in this list:http://www.genealogienetz.de/reg/SUD/prof-geneal.html