You are correct, the red folders are unread messages since you last logged into the Shop Forum. You can reset these to yellow after you have read the messages by clicking on the "Snap-On tool box" a couple of times. This resets the "last logged on" counter to the current time and date. That's what I do.
As far as cookies go, in the IBM version of Netscape this can be selected by EDIT / PREFERENCES / ADVANCED.
Bill Wood - Webmaster