It's basically what I typed above, you can google for the full syntax, but you want a symbolic link(thus "-s"), with the location you want linked to, and where you want to link. You can link between the standard download location in the wine folder (sorry, I'm not on Linux atm but it's something like $HOME/.wine/drive_c/users/somewhere - the standard c drive structure you see inside wine is in that drive_c directory) and a directory in $HOME/.gvs.
ln - s $HOME/.wine/drive_c/see_above $HOME/.gvs/Downloads
for example. The first location must already exist, and the second one cannot - it will be created. Now anything that exists inside the newsbin download folder shows up in that folder in .gvs. It's internally pointing to the same location. Because it's symbolic, you can delete the gvs folder and it doesn't affect the original one - it's just pointing to it.
Symbolic links are stunningly useful and I use them all the time in production. Currently I'm stuck at an all windows facility and was glad to find there are symlinks in windows, too, just not a lot of people seem to use them with the windows mindset of tracking every bloody installed file in the registry...
I'm reasonably sure you can manually enter the .gvs path into the nbi config file too, that's another option.
There's also an option in winecfg under drives to "show dot files", which may or may not work depending on specifics of how Quade does the requestor call.
As usual, with Linux there are typically 3-10 exceedingly verbose ways to skin a cat.
DT
P. S. Just noticed in my first post I pooched the syntax and had the order backwards - ignore that and follow this post, sorry.