Is it okay to install a .deb that wasn't made for your version

[Sam Sebastian]

i need to install ostinato (http://code.google.com/p/ostinato) and it only
has .debs for 11.04 and 10.04 and i'm using 11.10 would it be okay if i
install the 11.04 version? I already tired compiling from the source code
and i got error messages:

cd extra/ && /usr/bin/qmake /home/sam/Documents/ostinato-0.5/ostinato/extra/
extra.pro -o Makefile
cd extra/ && make -f Makefile
make[1]: Entering directory
`/home/sam/Documents/ostinato-0.5/ostinato/extra'
cd qhexedit2/ && /usr/bin/qmake
/home/sam/Documents/ostinato-0.5/ostinato/extra/qhexedit2/qhexedit2.pro -o
Makefile
cd qhexedit2/ && make -f Makefile
make[2]: Entering directory
`/home/sam/Documents/ostinato-0.5/ostinato/extra/qhexedit2'
g++ -c -pipe -O2 -Wall -W -fPIC -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB
-DQT_CORE_LIB -I/usr/share/qt4/mkspecs/linux-g++ -I.
-I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I.
-o commands.o src/commands.cpp
In file included from src/commands.cpp:1:0:
src/commands.h:6:24: fatal error: QUndoCommand: No such file or directory
compilation terminated.
make[2]: *** [commands.o] Error 1
make[2]: Leaving directory
`/home/sam/Documents/ostinato-0.5/ostinato/extra/qhexedit2'
make[1]: *** [sub-qhexedit2-make_default] Error 2
make[1]: Leaving directory `/home/sam/Documents/ostinato-0.5/ostinato/extra'
make: *** [sub-extra-make_default-ordered] Error 2


thanks for the help
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