I run Zorro in wine. I wrote a script which the Windows Registry then runs Zorro. I would not recommend doing this on a Windows installation you care about.

The zorro.reg template file is drawn from regedit's export function and looks like this. I have nulled out some sensitive fields.
Code:
REGEDIT4

[HKEY_CURRENT_USER\Software\Zorro]
"Acct"="FXCM"
"AcctNo"=hex:00,00,00,00
"Ass"="AUD/CHF"
"Pwd"="xxxx"
"Pwd1"="xxxx"
"PwdR"="xxxx"
"PwdR1"="xxxx"
"Scr"="hyper"
"Usr"="Dx"
"UsrR"="Dx"
"Winpos"=hex:36,0b,00,00,60,00,00,00,67,0c,00,00,ab,02,00,00

The interesting part is "Ass"="AUD/CHF". Here's one way to automate changing it.
Code:
sed "s|AUD/CHF|GBP/USD|g" zorro.reg > zorromod.reg
  wine regedit zorromod.reg
  wine Zorro.exe


I wish I could also hack Winpos. Zorro windows start one on top of the other.