personal configuration

Hello,

i have now a question regarding the personnal configuration of my server

the domain name is Free Samples Sample Resumes Sample Cover Letters Free Product Samples Giveaways at Sample.com and we have 3 main language:
Free Samples Sample Resumes Sample Cover Letters Free Product Samples Giveaways at Sample.com
http://www.sample.com/fra/
http://www.sample.com/rus/

the forums will be here
http://www.sample.com/usa/forums/
http://www.sample.com/fra/forums/
http://www.sample.com/rus/forums/

http://www.sample.com/usa/members/
http://www.sample.com/fra/members/
http://www.sample.com/rus/members/

etc.

And only english forum in the /usa/, french forum in the /fra/, and russian forum in the /rus/ (we already build an product in vbulletin for that)

some special UserCP script are redirected to our userCP (for exemple profile picture are redirected to our script (c++ ISAPI) Free Samples Sample Resumes Sample Cover Letters Free Product Samples Giveaways at Sample.com
. This is already build

now in fact everything is build but before to release it i want to integrate vbseo in it (we also already do the transformation of dynamic url in static url (for 80%), but i don't want to spend much time to debug it when i saw that you already done this job)

* can you give me your opinion ? what problems i will encountered?
* 80% of the message are post anonymously (no user account created, we autorise this because it's syncronyse with an nntp newsgroup) ... did the redirect to the member profile with vbseo will not bug in this way (when you are in forum home and you see the list of thread with a link to their author)? cause now vbulletin do a search that say no user found for this post and you as i see you replace by regex (i suppose) the search by a static link ... but if no user ID in the database how you will do ?? probably simply not show the link ? or the old system ?
* what about the email system ?

Hello,

do you have 3 vBulletin instances for every languages or that is a single instance modified to create "virtual folders" per language?
Are they separated with one forum category per language or languageID parameter/cookie is used to separate them?