Part of your post doesn't make sense - the location of the JAR file in the local repository. What is with the "maven.REPOSITORIES" text, and why is the file name on the next line, and what is with all of the spaces?
Given that C:\Documents and Settings\dell\.m2\repository is the location of your local repository, the JAR file, and its POM, should be at:
C:\Documents and Settings\dell\.m2\repository\com\oracle\ojdbc6\11.2.0\ojdbc6-11.2.0.jar
C:\Documents and Settings\dell\.m2\repository\com\oracle\ojdbc6\11.2.0\ojdbc6-11.2.0.pom
Check that both of these files exist.
Looking at you mvn install:install-file command, what is "{ORACLE_HOME}"? Look at line 8 in the install-file output, is that a valid path to the JAR file?