If you cannot sign for raids you need to update your character to match the current lvl cap (85). Go to "My account" -> "Characters" and update the lvl to 85. This should make you able to sign for the raids.

Can't believe your eyes? Believe it because here it is! New, updated phpraider.

This is how it works:

After logging in (old raidpage username / password work). Go to "My Account -> Characters" and create raiding able characters you have. Thats it! You are able to sign for raids now!

Signing for raids: 

Signing for a raid happens by clicking the "Pencil" icon next to raidicon. After clicking it just choose the character you want to raid with, your main character ofc ;) Signups are queued automatically until Officers / Classleaders will pick the raidgroup.

You can add / edit your signup and comment on the raidinfo page. Click the raidicon from the calendar and it opens up the detailed page for the raid. Editing your comment happens by clicking the "n/a" text below your name. If you cancel your signup use the "Not available" -button!