Calculating odds in survival analysis

["Data Analytics Corp." <dataanalytics@earthlink.net>]

Good morning,

I ran a simple survival analysis for membership in a club using

       survfit(Surv(tenure, expired) ~ book.flag, data = x)

for people who did and did not access online books.  Expired is a dummy 
if their membership expired (expired = 0).  I'd like to calculate the 
odds of surviving 2 years, 3 years, 4 years, and 5 years if they access 
a book vs. not accessing.  Can this be done?  If so, how?  I'd like to 
show that the odds are significantly higher for book accessers - the 
plot already showed this, but I know my client will ask for something 
like the odds.
Thanks,

Walt Paczkowski