Cant Flash Anything with Flashtool topic

Hi all. I've got an xperia x10a that doesnt turn on. I've read a lot of the other similar threads on this forum, and the go to answer to fix a bricked x10 is "flash stock rom with flashtool". the problem for me is that nothing will flash. it comes up as a different error, depending on the version of flashtool I use, but its generally either
"Error. aborted"

or

"error processing loader.sin"

i've tried multiple kernels and roms. anything I can do?