Can vBulletin accomodate these requirements?

[emmanuel2012]

Hello, after scouring the web for forums, open-source and not, I decided to urge my client to purchase vBulletin, confident that I can hack the templates to accomodate the needs of a multi-facted forum and blog system. As an intermediate and fast-learning web designer/codehacker, i guess I am just looking for reassurance that the following hacks can be or have been done:

? Login/Logout, registration and lost password module, along with the UserCP can be isolated into a different page, not just embedded in the index. (so that the user login and logout features can be accessed directly from an external PHP document, independent pathway to the forum).
? support for clean URLs using .htaccess or something that can give static links to each forum category so that each individual forum category can be seperately linked from an external flash document and viewed as an isolated forum from the rest of the forum categories
? templates for each forum category will use different CSS files

the navigation system i designed in flash has specific hacking needs if I'm going to use a pre-made forum system. you can view my navigation system here: http://your-world-and-mine.com

thanks to anyone who responds