Go to HR and let them know the problem you are having. UPSers.com is a function of corporate HR. They want you to visit the site. Ask them to call IS and IS will get you in. There is a lot of good communication info on the site. There are also discounts you can get. If you are good with the computer you can learn more about the company than most people know.
User ID is definately your employee number. However, your initial password is the first two letters of your last name, then your birth year, and only the last two digits of your employee ID... not the whole ID number... good luck!