in efforts to support the open source community, codeweavers has released in the past and even currently their source to crossover office. it's is wine based, but perfected moreso with productivity softwares. I suggest that you visit
www.codeweavers.com and download the source... probably 20-60 meg download. compile and install the source and use their setup to install your application. i'm sure that this will work much better than the raw wine route... =)