Upgrading from Global Centre Guestbook 1.0 RC1 to RC2 is a two step process. This guide attempts to try and make this as simple as possible.
Firstly, you'll need to update all changed files. Upload all the following files, replacing the previous version if required.
Main Files (./)
admin.php
index.php
Source Files (./sources)
admin/ad_adminlogs.php
admin/ad_approve.php
admin/ad_conf.php
admin/ad_database.php
admin/ad_emoticons.php
admin/ad_helpadd.php
admin/ad_helpmanage.php
admin/ad_manage.php
admin/ad_overview.php
admin/ad_pages.php
admin/ad_sedit.php
admin/ad_sselect.php
admin/ad_sstyle.php
admin/ad_stats.php
admin/ad_users.php
admin/ad_wordfilter.php
admin/skin.php
Script Files (./script)
bar.gif
gccode.js
Skin Files (./skin/default/)
postform.html
Once you have uploaded all the above files, upload upgrade1.php from the scripts folder of the distribution package, into the Global Centre Guestbook folder on the web, and access upgrade1.php from your browser. The upgrader will take you through the rest of the upgrade.