Andy, you should still be able to use your old DOS saves under Adom Sage (which works under 64-bit Windows, thank god).

With regards to killing beggars being chaotic, there are certain enemies that are always chaotic to kill. The druid is one of them, in spite of the fact that he's neutral (and that completing his quest when lawful is chaotic). Some creatures are also extra chaotic to kill - unicorns and children for example.

At some point I should probably have a look at the Guidebook and point out many of the things from my skill assessment for bards that could go in. Unfortunately I'm away from home for summer and missing many of my self-made notes on ADOM, otherwise I'd contribute a lot more.