Installation error cannot activate Membership Plugin

Warning: require_once(membershipincludes/classes/class.membership.php) [function.require-once]: failed to open stream: No such file or directory in /hermes/bosweb/web216/b2169/ipw.rachel96/public_html/wp-content/plugins/membership/membershippremium.php on line 43

Fatal error: require_once() [function.require]: Failed opening required 'membershipincludes/classes/class.membership.php' (include_path='.:disappointed:usr/local/lib/php-5.2.17/lib/php') in /hermes/bosweb/web216/b2169/ipw.rachel96/public_html/wp-content/plugins/membership/membershippremium.php on line 43

Also, this problem when uploading - using Filezilla as ftp client:

All files load properly except:

Response: 227 Entering Passive Mode (66,96,132,10,46,64)
Command: STOR class.membersearch.php
Response: 227 Entering Passive Mode (66,96,132,10,93,83)
Command: STOR class.membership.php
Response: 150 Opening ASCII mode data connection for class.membersearch.php
Response: 550 class.membership.php: Forbidden command argument
Error: Critical file transfer error
Status: Starting upload of C:\Users\Arnold L. Feldman\Desktop\1 QuWikApps\WP\30728_membership-2.0.7\membership\membershipincludes\classes\class.ping.php
Command: PASV
Response: 226 Transfer complete