Long story. This morning, I managed to put on a Facebook like button, a search box, and a link to the Echinacea website under the Links heading; but later discovered that the Categories links and RSS feed links were not working properly (led to xml files rather than html files), but the Archives and Monthly Archives were fine. Not sure whether this was due to the addition of the Facebook like button or the search box or accidental changes to the rest of the script or due to older changes. Josh backed up the templates and then returned the templates to default settings, but the categories still weren't working. I also discovered that the formatting for the Monthly Archive pages were lost, and couldn't figure out how to restore the backup templates. To at least salvage the main page of the flog, I decided to switch to a new style (hence the change in the appearance of the flog), re-added the Facebook like button and search box and clustermap. But rest assured that the content of the flog has not been changed, just that the formatting/appearance may not look so nice right now.
So sorry for the mess-up T_T At this point, I'm not sure what else I can do. Josh suggested posting on the support forum, so I just did that. Hopefully I will be able to get some help from the forum. If anyone reading this has any idea, please do not hesitate to comment. Any help is greatly appreciated!
p/s Are people okay with the current layout? Or is the original layout better? Thanks