Thanks Neal. I tried to open the srpm with Ark but the RPM option doesn't work. Funny thing is, I tried again but accidentally clicked on the SV4 CPIO Archive option to extract the files and it worked.
So, my next question is, after extracting and changing the permissions, do I need to create it as a xxx.src.rpm file again so I can then extract it into the correct build files? And if so, how would I go about doing that?