This isn't really an answer to your problem, but in my experience Wine, while a lot better than nothing, just isn't going to run something like Lightroom acceptably fast and reliably compared to a supported platform (i.e. Windows or OS X). This is especially true if you're a power user, and use Lightroom as a professional tool.
If you really do rely heavily on Lightroom, and aren't able to find an acceptable native alternative, you might want to consider dual-booting, using Virtualbox to run Windows under Ubuntu, running Lightroom on a separate machine, or just resigning yourself to using Windows or OS X.
Best of luck!