BuddyPress.org

That’s the 1.0/1.1 theme. It’s out of date and doesn’t work any more.

@addisonkirk you really, really, like the theme Move bp-sn-parent theme folder from
wp-content/plugins/buddypress/bp-themes/ folder to wp-content/themes/ folder

Maybe after installing it, you might want to port the design to BuddyPress 1.2, but it’s not that easy.

I really shouldn’t encourage you to continue with BP 1.1 series nor using old WPMU versions:-) … but that BP 1.1 series requires WPMU 2.8.4a (per old record of mine) Click on download link near bottom of page
https://trac.mu.wordpress.org/browser/tags/2.8.4a
BP 1.2 series support single WordPress

@addisonkirk seriously, I would only recommend that for studying the theme to port it to BP 1.2, In addition, if you want to have forums, the installation process is much more complicated than the easy forum set up we now have with BP 1.2. In fact http://theeasybutton.com/’s detailed and helpful article on how to set it up in old WPMU and BP version is no longer available online.

@addisonkirk

Why not use this version?

Because as djpaul mentioned above, it’s outdated. WP 3.0.1 single or multisite with BP 1.2.5.2 is the way to go. In addition to stronger WP security and better features, you’ll be missing out on the BP plugin extension goodness which are only available and actively developed for current BP version – https://buddypress.org/extend/plugins/

Is there any way to get this theme on the new version?

Ah, it’s do-able but porting it would take some time to do so with all the customization in layout and coding to make it work with BP 1.2.5.2. There are free and premium BP child/regular themes which can further customize to taste. And, if you have WP theme, use BP Template Pack to bring over BP social networking goodness.

I am creating a Motion Picture Casting site

Cool. I’ve always wanted to play a vampire Kidding aside, BP 1.2.5.2 and WP 3.0.1 install is the way to go. If you haven’t yet, check these out
– https://codex.buddypress.org/home/
– https://wordpress.org/showcase/flavor/buddypress/
– http://www.bpinspire.com/
Many have customized BuddyPress themes and majority are on latest BP/WP versions.

Cheers.