I downloaded install-crossover-pro-4.1.sh, and did an upgrade install on Fedora Core 2. Quicken 2004 works fairly well, including updating several brokerage accounts via the "Update" feature.
However, when I use Quicken 2004 "Online" feature to download E*Trade bank account info, via WebConnect, Internet Explorer 6.0 posts a dialog that it is downloading account data, but the downloaded data never appears in Quicken.