If I don't use greenseo url structure must be change. And if I want to use default redirect script comes with the converter, I must remove vbseo then I must redirect links to default vbulletin link structure for example: showthread.php?t=id finally able to use default redirect script. Am I right?
Yes, but we provide a RewriteRule to rewrite your old vBSEO links (provided that they are the default ruleset and not custom) to showthread.php - which then lets our redirect scripts take over.
The RewriteRules which we provide are as follows:
RewriteEngine on RewriteRule ^[^/]+/([0-9]+)-[^/]+\.html http://www.site.com/forum/showthread.php?t=$1 [L,R=301] RewriteRule ^[^/]+/[^/]-[^/]+\.html#post([0-9]+) http://www.site.com/forum/showpost.php?p=$1 [L,R=301]
So it does look like that covers domain.com/category-name/1234-topic-title-here.html.
Of course if you have any questions or issues during the conversion our support team are more than happy to help.