Make the calls and find out for sure. I've heard that regulation was done away with this year so you could potentially buy an archery license and hunt the same day this year.
In years past, licenses bought DURING the open archery season required a 3-day waiting period before hunting was allowed. Licenses bought the day before season allowed for hunting the day the season opened because the season wasn't open when the license was purchased.
Check out the (old) DNR website for more info. You can find a full .pdf of the deer hunting regs and buy licenses right from the website. Not sure if you can buy a first-time non-resident license online or not, never had to worry about that.
Be sure to bring some beer and cheese, the entire state of WI is currently out after the romping of the NY Giants today!
"Even a mosquito doesn't get a pat on the back until it starts working"