It's the same turbo as I am fitting bill (see my manifold build thread) iirc vf44 and vf45 also share the same flanges as does the TD04HLA 19t which is the mitsi version, also vf36 and vf37 may also be twin scroll but I'm not 100% on that or there flange pattern.
As for finding flanges yossie there are some on eBay if you search vf38 you will find them although I'm not sure if they are SS or what the quality of them is like, and I also found one of the Subaru tuning companys do a cast outlet section with a built in flow devider but I can't remember the name of the company but if you google it you should find it. However in the end I had SS flanges cut/ machined for my manifold as it was the most cost affective option for me, again see my manifold build thread for pictures of what you will be looking to have made if you went down that route.
Hope that helps a bit,
Tasha