The public catalog is Supported Operating Systems. Your own images are Cloud to Images to My Images.
A load balancer sits in front of servers. It is a Networking tab, not a first VM step.
Buckets live under Cloud to Object Storage. The portal is the inventory; large uploads use the API.
DNS for names you point at Gozunga lives under Cloud to DNS.
The browser console is how you get a login prompt when SSH will not.