Sorry, I'm neither on Wheezy, nor Sid. But:
Iceweasel --> has spell checking via xulrunner, which uses Hunspell, and Wheezy needs libhunspell >= 1.2.11, which is the same in Squeeze. That way you covered IW and Icedove (and everything else that runs on xulrunner).
OpenOffice --> has the package hunspell-dictionary as a suggest, and no version is really given. So I don't see why the version from Squeeze wouldn't work.
Abiword --> is using aspell; in the same version in Wheezy as in Squeeze, but it's further progressed in Sid.
Unless, of course, some dep. of both hunspell and aspell is the culprit (e.g. the C libraries are common to them).
Try a dry run downgrade. If it works, try the real thing and try to check spelling. Bon chance!
<< I guess that makes them "DEBITARDS" ..... >>