URGENT repair of some minor functionalities

hi recently we got a new portal, created by a coder here on RAC. However, some minor things are not working. The portal itself creates a connection between offering partners and asking students. However, some filters are not working. Then you can think about - filter that prohibits students from subscribing because they life in a wrong city - maximum amount of students subscribing for a services etc. [login to view URL] in total 5 changes. really needs to be done asap!!! therefore, I'm looking forward to good coders who can help me out. If you think you can do the job, please let me know, its very urgent!