Hi S B Burde,
I'm not a DSpace guru, but I'll ask one of our team members who is to take a look at this thread. However, I will say that while OCS is a fairly typical web application with typical requirements, DSpace is a different beast altogether, and IIRC requires some fairly specific Apache configuration that might make running other, more typical web apps difficult. You may be able to find assistance from their community members (
http://dspace.org/community/archives/) who would be able to suggest ways in which you can have DSpace cooperate with other web apps.
Cheers,
James