If you can't see 8.5, you may have an issue with your maintenance. If you're not up to date, you won't have access to newer versions. You can call customer service and solve the maintenance issue (which will, as you might expect, cost money) and then you can upgrade from 8 to 8.5. Just to add incentive, if you have maintenance, you'll get 9.0 for free later this year, and 9.0 promises to be the biggest release we've done in many years.
v9.0??? HOLY COW!! i just am getting used to 8.5.1 sp3!!! hahaha
When can we sign up for 9.0 beta