Upgrading Drupal

I had upgraded from Blogger to Drupal 4.6. Everything was smooth.
When I upgraded from Drupal 4.6 to 4.7. I encountered a problem with the authornames of the comments that were done in Blogger, i.e. the author name is shown as follows for example; <a href="http://www.blogger.com/profile/2603906" rel="nofollow">JPierre</a>

While I checked the source code of the rendered page, it turned out that drupal has change the "<" to &lt and etc...

How can I fix this?

I recently upgraded from 4.6 to 4.7.2 (very clean, thank you for the upgrade video!!!!) and since doing so I've noticed my Polls which ran fine in 4.6 now allow sporadic multiple voting when it should not (did not in the past).

i tried to upgrade from4.7.0 to 4.7.2. i overwrote drupal files with new ones, then added the "Files" folder, configured the sites/default/settings.php to connect the db, copied the old .htaccess file in root directory. after that nothing else but a 500 "Internal server Error" was displayed.

i tried to restore the old install with old files (i have a complete back up), but strangely it gave the same result. (2 days ago it was working ok).

i even tried to install a new drupal from scratch (with new database tables), with no success.

Since my Drupal 4.6->4.7 upgrade I can add vocabularies but not terms. also, I cannot list terms. Clicking on either of these links just refreshes the page.

Hi,
I've installed Drupal 4.7.2 because I've found some problem with update.php script to update from Drupal 4.5.x
Now, my problem is:
how can I modify my old db to work with Drupal 4.7.2?
or, how can I popolate my new db from old db?

I need to import my old informations such as Users, nodes etc.

Help me!

Thanks,
WaPoNe

I hadn't upgraded for some time with drupal so I updated it from 4.6.3 to 4.7.2 and even tho I remembered to back up my settings I didn't backup my hpaccess and what has happened is all I have is the content and none of my login settings or anything that I could use to get into the administration section.

I was using the slash theme and I updated that but I didn't change it back to the default when I did the upgrade.

Is there anyway that I can repair this or will I have to start again?