These are what you call cookies you have to download fire fox or use Opera Internet browsers any of these are OK for fire fox you have to download a plug-in called cookie editor. once you download it and installed go to tools and click on edit cookies search for filesonic but make a fake a/c and login so it can show PHPSESSID the you type in the cookies that were provided re-load the page and the download should start.
For Opera the program is already integrated. just to under tools/Advance/Cookies... search for filesonic and look for a cookie called PHPSESSID under Value type in the cookie. re-load the page and done.