rh 4 install?

[Ray Stell <stellr(at)cns(dot)vt(dot)edu>]

1.6.3 install issues
Red Hat Enterprise Linux AS release 4

the os base includes libxml2-2.6.16-6 and trying to install
libxml2-2.6.18 conflicts with some base files:

# rpm -i libxml2-2.6.18-1.i386.rpm
warning: libxml2-2.6.18-1.i386.rpm: V3 DSA signature: NOKEY, key ID de95bc1f
        file /usr/bin/xmlcatalog from install of libxml2-2.6.18-1 conflicts with file from package l
+ibxml2-2.6.16-6
        file /usr/bin/xmllint from install of libxml2-2.6.18-1 conflicts with file from package libx ml2-2.6.16-6
        file /usr/lib/libxml2.so.2 from install of libxml2-2.6.18-1 conflicts with file from package
+libxml2-2.6.16-6

is there a workaround?