You have 2 options, really:
DiRT. This requires that you build the new servers to 4.0(4) and restore via DiRT then upgrade to 7.0(2). Quite a bit of work IMO, I prefer the next method.
COBRAS. You would have to upgrade Unity 4.0(4) to 4.0(5) and then you can export/import to 7.0(2) via COBRAS.
The reason COBRAS doesn't work for 4.0(4) and earlier is because the SQL database changed quite a bit in 4.0(5).
Hailey
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