Converting RPM to Debian Package and Vice Versa
Converting these two major packages has never been easier. In this example we will use RPM package of virtualbox 1.60 (renamed it to test.rpm to make life easier), convert it to debian package and than convert that debian package back to RPM.
Converting rpm to deb: sudo alien test.rpm

Converting deb to rpm: sudo alien -r test deb

So simple, yet effective. You can download it from here.
iEntry 10th Anniversary
LinuxHaxor
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MH
So Aliens a great utility for simple packages. However; both RPMs and DEBs have a very different way of handling packages. I’m surprised that you got the virtual box RPM to convert into a DEB. Having packaged DEBS my self I’ve come to respect how complicated the process can be for correct creation of a DEB. If I was ever presented with installing a program from a Alien created DEB or from source, I would pick source 100% of the time.