Lifetype 1.1.3 summary.php redirect problems

[Kuro]

Hello,

I installed LifeType 1.1.3 from scratch and I'm using subdomains with custom urls
I'm using default options for custom url
My base url is: http://www.site.com
I'm using MySQL 5 with Apache
Php safe mode off
php safe mode GID on (also tried off)
PHP register globals on (also tried off)
I also tried Lifetype 1.1.2 and it work well on the same server with same configuration.

Said that I have 3 problems:

1) With the default htaccess if I try to open http://www.site.com it start a redirect loop to http://www.site.com.
I resolved this using
DirectoryIndex summary.php index.html index.php

If I change the base url to site.com it redirect to the first site I set under: default_blog_id

2) But the main problems is this:
When I try to open http://www.site.com/summary.php via browser such as FireFox I can see the summary but when I test it via seekbot http://www.seekport.co.uk/seekbot/index.html I get an error 502
http://www.checkupdown.com/status/E502.html
This problem also block googlebot

3) Some posts (with long slug) works correctly if called inside their blog or if loaded directly via browser address bar but if I try to open it via summary.php I get this error:
Catchable fatal error: Object of class Article could not be converted to string in /path-to-file/class/database/db.class.php on line 402

A workaround of this problem is set to off template_cache_enabled under template options

Admin panel is ok, blogs management is ok and so on.

Someone can please test with seekbot their installation and verify my problems?
I tried to open http://devel.lifetype.net/ to test but I get a 403

[Kuro]

There are problems to use my current 1.1.3 DB with LifeType 1.1.2?
So I can have a functional installation meanwhile we try to resolve these problems

[Kuro]

Tried (for the second time) to upload again all files but no luck. Just an hit:
I forgot to do not upload also wizard.php so I get the reminder "Please delete wizard.php..." I tested with seekbot the page and all is ok (no strange redirect), so I think the problem is in summary.php.

[jondaley]

The db should be fine, I think - because we shouldn't have changed anything between those versions.

I don't know why you are having redirect issues.
I don't know what seekbot is, but if you can see it via your browser, than lifetype is fine.

[phunkphorce]

If the default .htaccess file is causing issues in LT 1.1.3 and the one in 1.1.2 isn't, can you compare them both and see what changed? Were you using a customized .htaccess file?