It looks as if Wine might be supporting Adobe's Flash CS3 as well as Photoshop CS3 on Linux in the near future. With the recent help from Google to get Photoshop CS and CS2 working properly in Wine a huge chunk of the underlying architecture work was put in place for CS3 application support. There are still a number of bugs that need to be triangled and fixed before CS3 is properly supported but this is great news none the less.
Photoshop CS3 in Wine
Louis Lenders posted on bug 8945 that he has got Photoshop CS3 running in Wine, here is his post.

So when Wine 0.9.58 is released if your not a current git user you can try CS3 and keep track of its progress.
Flash CS3 in Wine
Here's Louis' recipe for installing Flash CS3:
Photoshop CS3 in Wine
Louis Lenders posted on bug 8945 that he has got Photoshop CS3 running in Wine, here is his post.
Photoshop CS3 in current git
Right, got Photoshop CS3 running now in current git. Looks like interface suffers from quite some bugs though, see screenshot.
So when Wine 0.9.58 is released if your not a current git user you can try CS3 and keep track of its progress.
Flash CS3 in Wine
Here's Louis' recipe for installing Flash CS3:
1. copy mshtml, shdocvw, urlmon, shlwapi, mlang and jscript.dll from my XP
partition to ~/.wine/drive_c/windows/system32
2. Do 'regsvr32 jscript.dll'
3. Do winetricks msxml3
4. Set mshtml, shdocvw, urlmon, shlwapi, mlang to native in winecfg
All this is only needed to make the installer happy and finish fine. The actual
Flash.exe doesn't need any native dlls set here, only you need gdiplus.
5. Do winetricks gdiplus
Now start Flash.exe, and it comes up fine here (Note: "fine" is maybe not a good word, the toolbars are quite messed up, if i use native comctl32 it all looks better)

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