Thanks for your mail and purchasing trakAxPC Pro.
TrakAxPC is not compatabile with twixtor.It is really up to the developers of twixtor to make it compabile with applications but trakAxPC does not yet allow third party effects run within the application.
It does give a list of compatible applications on its website - http://www.revisionfx.com/products/twixtor/compatibility/
I would say that most of the application that twixtor is compatiable with are quite expensive so it really depends on your budget.
I hope this helps and best regards