Most newbies to SharePoint are advised to do the WSS or MOSS 2007 courses, 5060 or 5061 respectively, in conjunction with SharePoint Designer.
If you are going to be responsible for installing the product and maintaining it on the server (backups etc), then 5060 and 5061 are fine.
If not, do not do those courses. They are very technical and you are not going to understand a thing (unless of course you have a strong IT background). Do the 50227A SharePoint End User course instead, or a course at least based on some of that outline. Find out from your favourite trainer what they have on offer.
Wait 6 months or so till you take on SharePoint Designer. It is a developers tool and you can break your whole site if you don't know what you are doing. Be patient, learn the basics first.