Registrar-Lock is the RRP expression for not being able to transfer a domain to another registry (the domain is locked). In org domains however can now also see the following (thanks to PIR - Public Interest Registry):
Status:CLIENT DELETE PROHIBITED
Status:CLIENT UPDATE PROHIBITED
Status:CLIENT TRANSFER PROHIBITED
Actually, everyone has valid answers, but I believe in your case, the registrar-lock means that nothing can be done to your site without your approval.
If you are looking for when/if a domain is available, look at its expriery date. This will give you a good idea on when you can get it. You only need to think about registry-lock if a) you own the domain and want to sell it or b) you want to buy it off the woner
yes - "poordoggie" has it. sorry i was prob a bit vague on "nothing can be done to your site." let me clarify that it refers to sales, transfers, etc...