[CentOS] libgio?

Hi,

I'm trying to run Celtx (a screenplay formatter) in CentOS 5.3 from the shell. If I run celtx-bin I get the following error:

./celtx-bin: error while loading shared libraries: libjemalloc.so: cannot open shared object file: No such file or directory

If I run celtx I get

./celtx-bin: error while loading shared libraries: libgio-2.0.so.0: cannot open shared object file: No such file or directory

I can't find either of these files in the repositories. I find libgioXXX for OpenSuse and Mandriva at PBone, but not for Red Hat. I'm guessing these files are part of a bigger library?

Any pointers would be appreciated.

Thanks.