Error message during installation

[avinash.godara]

hi,
when giving following command:-
sudo rpm -Uhv rpmforge-release-0.3.6-1.el5.rf.i386.rpm
an error appears:-
sudo: please use single character options

i continued to install but when gave command:
sudo rpmbuild -ta courier-authlib-0.62.1.tar.bz2

again an error msg appeared:-
bunzip2:I/O or other error, bailing out. Possible reason follows.
bunzip2: Broken pipe
Input file = (stdin), out file = (stdout)
error: Failed to rename ~/rpm/SPECS/rpm-spec.aAISuq to ~/rpm/SPECS/rpm-spec.aAISuq : No such file or directory

Please help in resolving the error