[Q] Informix DB restore from cpio root dir backup

Hi, I have an Informix-Online 5.01 DB that crashed on me last night. However, while bringing it back up, the disk was initialized by mistake (the instructions called for initialiazing shared memory). So when I logged in and looked at the log I discovered that all my data was lost! My database backup is over a month old. So I am partially there. Is there a way for me to restore tables from a UNIX system backup (cpio). That backup is only a day old and I know the chunk was backed up last night (/dev/rmydb). So my question is it is possible? I have little hope though. Please respond without malice :) Thanks in advance.