Muchas Gracias amigo.. el error que daba era este:
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Debug build of project `C:\Documents and Settings\Javier\Escritorio\radar2.mcp' started.
Language tool versions: mpasmwin.exe v5.31, mplink.exe v4.31, mcc18.exe v3.31
Preprocessor symbol `__DEBUG' is defined.
Thu Jul 30 09:56:29 2009
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Clean: Deleting intermediary and output files.
Clean: Deleted file "C:\Documents and Settings\Javier\Escritorio\radar2.mcs".
Clean: Done.
Executing: "C:\MCC18\bin\mcc18.exe" -p=18F452 "ir_range_project.c" -fo="ir_range_project.o" -D__DEBUG -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
Executing: "C:\MCC18\bin\mplink.exe" /p18F452 "ir_range_project.o" /u_CRUNTIME /u_DEBUG /z__MPLAB_BUILD=1 /z__MPLAB_DEBUG=1 /o"radar2.cof" /M"radar2.map" /W
MPLINK 4.31, Linker
Copyright (c) 2009 Microchip Technology Inc.
Error - could not find file 'c018i.o'.
Errors : 1
Link step failed.
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Debug build of project `C:\Documents and Settings\Javier\Escritorio\radar2.mcp' failed.
Language tool versions: mpasmwin.exe v5.31, mplink.exe v4.31, mcc18.exe v3.31
Preprocessor symbol `__DEBUG' is defined.
Thu Jul 30 09:56:30 2009
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BUILD FAILED
Entonces solo agregue a "library search path" el directorio "lib" y aplicar-->aceptar.. Luego le di a la opcion BUILD ALL y Listo! me genero el archivo .hex...
No tuve necesidad de agregar los demas directorios a "include search path" y "linker-script search patch" ni agregar el archivo *.lkr al proyecto... Gracias por su ayuda estoy muy agradecido...
Saludos!