Switching registred version from Mac OS to Windows

[Zorg]

I purchased Qcad for Mac OS X last year and since this time I had, unfortunatly, to switch my work station from Mac to a windows based one.

so I can't use qcad anymore. I tried to check the dowload section ribonsoft provided me, but it has expired as it's older than one year.

what are the solutions I have in order to have qcad up and runnig again on my work station ??