I am registered with the site though have not used it for a job yet. I do however want to post a job as I am looking for an illustrator for a specific job. I can't seem to do this! it keeps taking me to available jobs with no option to post a job of my own!
I am hoping for help with this issue,
It looks like you have a freelancer profile on Upwork but don't yet have a client account. You can have both. Check out this help article for instructions on how to access your Settings and add a client account. You'll keep the same log in, but will be able to switch between the client and the freelancer accounts.