> 1. Resume failed downloads from any host based on checksum

SHA1-hashes will come in 3.0.0

> 2. User definable extension criteria. (Ie. Define what extensions make up the "Documents" group)

Which extensions have been left out?

> 3. Mousewheel scrollable windows

Get Sun's JRE 1.4

> 4. Give up & clear a download after so much inactivity, possibly try another host if file is available from another host.

LimeWire will already try another host, if the first download is inactive or not.

> 5. If you're not going to allow resuming from different hosts, then give the user the option to delete incomplete files. No sense in collecting them.

Go to the Library-Panel, you can delete them there.