What kind of error you are getting., I have no error and able to download anything from Ovi store easily and everything's working fine..
It's giving crc errors coz your .vpl file has difference crc value for my Core and when you use all my files including .vpl, crc values matched and it flashed properly..
Solution is either flash in dead usb mode (Don't connect your phone, switch it off until flashing started and then connect it still in switch off mode, it will flash fine) else you can use darkydawson
method too, that's fine too..
Of course you can mate, I thought to include v3.07 but as it's still in beta, I added the last final release. I don't like betas that much