gtk2.10 on etch change keyboard shortcuts

["Flyzone Micky" <flyzone technologist com>]

Hello, I have installed Firefox3 that requires libgtk2.10, so I have putted that library 
as wrote in bug 418885 of mozilla:
file extracted in /opt/gtk2.10 and running firefox as:

export LD_LIBRARY_PATH=/opt/gtk2.10/usr/lib:${LD_LIBRARY_PATH+":$LD_LIBRARY_PATH"}
/usr/lib/firefox/firefox

Firefox run correcly without to stop telling that it needs gtk2.10 instead of 2.8 (as default
in debian etch) the problem is.....that all keyboard shortcuts are changed!
If I press CTRL+F instead of openening the search in firefox, open the xterm, the mouse side 
buttons instead of going back and forward don't do nothing, the default theme choosed is changed
and other issue like this....
I'm using KDE as window manager, and I have set using the command "kcmshell kcmgtk" to "Use my KDE
style in GTK applications" and "Use my GTK fonts in GTK applications" but this seems not working.

How can I solve this? The library is read correctly but seems the settings are not... :(

Thanks in advance

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