Run Eldown to get a copy of what's up there now. 

If you don't have ~/EL already, it should be created.

Put the additional RPM files in the right spots under EL/6

Before running createrepo on the directories, remove the subdir
'repodata'. Otherwise some users report fail to update

$ rm -rf x86_64/repodata/
$ rm -rf SRPMS/repodata
$ createrepo x86_64
$ createrepo SRPMS


Run createrepo on the i386 and x86_64 directories separately. 

Then run ELup