Re: Even default theme not working.
Is your WP single site or multisite? Test WP functions first before installing BuddyPress to isolate the problems you have in your install. Run Settings > Permalinks and set it to other than default. Deactivate BuddyPress and qTranslate. Now go change themes in WordPress site – is the theme layout showing as expected? Upload media in site. If you’ve gone multisite, upload media in subsite/blog also, are images showing up in posts with WP default theme (twentyten) on for main site and subsite? If answer to either is no, then you have to resolve those issues first before installing BuddyPress by going to https://wordpress.org/support/
