Problems with 493 files / 13 GB

First, thanks for a great program.

Second, I have downloaded 493 files / 13 GB. Now I get error messages that after downloading a file it "can not move the file to the library" (I am paraphrasing).

I am running Celeron 900 MHz, 256 MB RAM, Windows 98 SE, Limewire 2.2.1 Pro, and have about 17 GB free disk space.

I assume that the problem is that Limewire or Win 98 can only manage X number of files or Y GB of data -- and I have reached that limit.

I assume that Limewire can only have one "Shared" directory?
I don't want to move some of the empty files out of the "Shared" directory because then LimeWire will not know what files I have already downloaded and I would start downloading the same files over again.

Any ideas or suggestions?

Thanks