Virtual Box Didn't Run Yet

Uh, looking for libxerces27, for depend of my virtual box. My libxerces27 for edgy is not satisfied for dapper, because of it dep too. Ah, I still miss this virtual machine, because I need for my TA (Last Literature??). I hope, after this i can run my virtual box. i have download libxerces27 for Dapper, and i hope this is the last depend.