Having individually advised several others of some of the following, why not make it a general post? All are listed as English unless otherwise noted:
[6S] http://www.hp.com/cposupport/manindex/hp6ssolarc30831_eng_man.html (both English & Hungarian)
[10Bii] http://www.hp.com/cposupport/manindex/hp10biibus30834_eng_man.html
[12C] http://www.hp.com/cposupport/manindex/hp12cfinan81575_eng_man.html
[30S] http://www.hp.com/cposupport/manindex/hp30sscien30829_eng_man.html
[39G] http://www.hp.com/cposupport/manindex/hp39ggraph30819_eng_man.html
[49G] http://www.hp.com/cposupport/manindex/hp49ggraph24252_eng_man.html
And I've seen other (less official :) manuals on various at http://www.hpcalc.org/. So go forth and enjoy.
gk
:)