After logging into the forum, you can go under Quick Links -> Edit Profile (drop-down menu under Quick Links) to modify your profile and account information. In the profile settings, select the link "Look and Layout Preferences" on the left side of the screen to modify the forum behavior. I suggest selecting the option "Show most recent posts at the top" to display posts within a thread from new to old. Clicking on any member name on the top left corner of a post will open a member's profile.
I hope this information helps.