Midway thru news:
OK, there's been some style changes, so I'm manually fixing the affected template files now... at this stage it only affects the user control panel.. initially it was preventing admin logon, but that's now resolved.
Stay tuned for updates.
After fixing SimpleDarkPurple & SimpleDarkGreen:
After a lot of fiddling to edit changes in syntax adopted by RC7, our custom themes are now working in RC7... this was no small feat... every use of </form> had to be preceded with S_FORM_TOKEN, and all uses of username and password had to be updated to their new syntax.
I may have missed something - please - if you see even the slightest error reported from phpBB, private message it to me or pop it in this thread.. it won't be much trouble to fix, so long as we find the errors... some may only appear under a user but not admin logon, so your help would be appreciated.