None that I know of. But many multi-track programs allow you to export each track as a separate .wav or .aif file. You could do this export from Samplitude or Cool Edit then bring the individual files into Vegas. They should line up fine if you insert them at the beginning, then you can use Vegas to edit and mix.
SEKD seems to distribute it on their website. EDL Convert suppports Vegas, samplitude, SAW, Cool, Wavelab, Sadie, Sonic Solutions and AES31 (don't know was AES31 is...)