Ubuntu 8.10 under VMWare - Keyboard configuration

[ubuntuubuntu]

I am using Ubuntu 8.10 under VMWare, and I have a problem with the keyboard configuration. The problem is I can't type "cedilha" (I get 'c instead of ç). Also, I get 'A instead of Á, ~A instead of Ã, etc.

How can I solve this?

Here is my /usr/lib/gtk-2.0/2.10.0/immodule-files.d/libgtk2.0-0.immodules:

# automatically generated by dh_gtkmodules, do not edit
"/usr/lib/gtk-2.0/2.10.0/immodules/im-am-et.so"
"am_et" "Amharic (EZ+)" "gtk20" "/usr/share/locale" "am"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-cedilla.so"
"cedilla" "Cedilla" "gtk20" "/usr/share/locale" "az:ca:co:fr:gv:oc:pt:sq:tr:wa:en"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-cyrillic-translit.so"
"cyrillic_translit" "Cyrillic (Transliterated)" "gtk20" "/usr/share/locale" ""

"/usr/lib/gtk-2.0/2.10.0/immodules/im-inuktitut.so"
"inuktitut" "Inuktitut (Transliterated)" "gtk20" "/usr/share/locale" "iu"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-ipa.so"
"ipa" "IPA" "gtk20" "/usr/share/locale" ""

"/usr/lib/gtk-2.0/2.10.0/immodules/im-multipress.so"
"multipress" "Multipress" "gtk20" "" ""

"/usr/lib/gtk-2.0/2.10.0/immodules/im-thai.so"
"thai" "Thai-Lao" "gtk20" "/usr/share/locale" "lo:th"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-ti-er.so"
"ti_er" "Tigrigna-Eritrean (EZ+)" "gtk20" "/usr/share/locale" "ti"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-ti-et.so"
"ti_et" "Tigrigna-Ethiopian (EZ+)" "gtk20" "/usr/share/locale" "ti"

"/usr/lib/gtk-2.0/2.10.0/immodules/im-viqr.so"
"viqr" "Vietnamese (VIQR)" "gtk20" "/usr/share/locale" ""

"/usr/lib/gtk-2.0/2.10.0/immodules/im-xim.so"
"xim" "X Input Method" "gtk20" "/usr/share/locale" "ko:ja:th:zh"

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Thank you!

[seff-feedback]

I use the alternative international keyboard layout. I also did the procedure on this site:
https://sites.google.com/site/sefftips/gtk-cedilha