Something weird happened.
The file you told me to delete (d3d9a.dll) was absent. Instead, a file named d3d9.dll was in there. Assuming they were they same file, I deleted that one (considering that sweetfx.dll was also absent) and rebooted FeralHeart. I was told FeralHeart could not run because d3d9.dll was missing. The folder was still open, so I undo'd (or undid? pfft) the file deletion. I booted up FH again; apparently it was still missing. I even went out of the folder and then back in again. Still no luck.
One problem after the other. Augh.
EDIT
Problem is fixed.
Still the white screen though. I'm currently downloading the newest version of your mod.