...Your UTAU can only use VSQs? Errr...well first off, if it's an UTAU, then it can use USTs. If it's a matter of converting USTs (since the USTs are in VCV), then use the Suffix Broker in Options->Built-in Tools & remember to fix the envelopes. Then it'll be in CV.
However, if you own Vocaloid 3, there's a VSQx -> VSQ Job plug in.