Drupal 7.x

I can't find a guestbook module that works with drupal 7.x
Same for a gallery module.

I already did most of the work (in 7.x) and I don't want to get back to 6.x

can you help me?

I need help to find the right way how to use media / pictures in D7.

This is what I need:

A) I'd prefer having media / pictures as nodes, so they can be tagged and sorted into galleries by users.

B) Pictures should be inlined into articles with a variety of given style formats (float left, float right, display description, hide description, small, medium, large size). Mulriple pictures in one article should be possible.

C) Content authors should have an easy way of finding and inserting already uploaded media.

Is there anyway to export my content types using backupandmigrate module?
I need to update from 7.0-alpha6 to beta2 can I use backupandmigrate? how can I export my content types in d7 ?

I have a problem with integrating several flash scipts with input fields to be modified by users.

Hello to all, I'm new here at drupal community:

I have a problem when I access drupal 7 index for the first time.

It gives me the next error:

Warning: file_put_contents(temporary://file1Yl6Vj): failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1832 of /var/www/www.site.com/public/includes/file.inc).

Here the line 1832:

if (file_put_contents($temp_name, $data) === FALSE) {

Thanks for the help.

What modules would you install for a new site that will be pretty complex? Here is what I gather are some must-haves. If something is out of date please let me know.

Date
File FIeld
Image Field
Image Cache
Link
Node Reference
Node Queue
Token
Insert
Backup Migrate

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Selected modules used in OpenAtrium (Apr 2011)
Organic Groups
Case Tracker
Chaos Tools
Content Profile
Context
Feeds
Messaging
Notifications
Spaces