XOOPS integrated with WebScribble Products

I run a community portal web site using XOOPS. I have a dating site, classified site and soon to be social networking site – ALL using WebScribble’s Software ([login to view URL]). Currently, I run 3 sites with a 4th coming soon... [login to view URL] (the MAIN portal site) [login to view URL] (the DATING site) [login to view URL] (the classified site) I hired a company to create a login bar that stays at the top of each page, and allows you to login ONCE on any of the sites, and access all 3 sites. This has worked well, but we have had issues. First issue, we don’t have a CUSTOM registration form – and each site requires different information. For example, when you want to post an AD on [login to view URL], if you registered from the XOOPS site, then your LOCATION doesn’t get posted – because it doesn’t require that information on the Portal site. It has also been brought to my attention that if somebody edits their profile on one site, the changes won’t reflect on the other sites. I doubt it’s possible to create ONE database for ALL 3 (soon to be 4 sites). Here is what I need: - Possibly a better way to handle the login bar across all 3 (soon to be 4) sites. - A custom registration page, that collects ALL the information needed across all 3 (soon to be 4) web sites. - I can’t lose ANY of the users I have right now I am open to other ideas and suggestions, but this has been on-going for awhile now and it’s recently become urgent. All sites use mySQL database on a Linux Dedicated Server. I will not accept any generic bids. Please don’t bid if you don’t have the time or resources to commit. Communication over MSN is needed. Serious inquires only. Thank you.