error before install

[redzuan]

ok, i have download and put all folder in www (public html) directory (web server)
then when i open index.php, this error occur

Warning: mkdir(/home/tdigroup/public_html/phpfreechat-1.0/src/../data/public/themes/default) [function.mkdir]: Permission denied in /home/tdigroup/public_html/phpfreechat-1.0/src/pfctools.php on line 150

Please correct these errors:

* cannot create /home/tdigroup/public_html/phpfreechat-1.0/src/../data/public/themes/default
* cannot create /home/tdigroup/public_html/phpfreechat-1.0/src/../data/public/themes/default
* /home/tdigroup/public_html/phpfreechat-1.0/src/../data/private/chat/s_1e8a976642c42b318e5cbc90b6be2e6e can't be created

about 6 lines of error. i try using chmod 777 but in ftp command prompt (windows), chmod cant be used. help me

[ninjaw]

lots of text for nothing, you need write rights, you forgot to speak about your server, contact admin if you cant get rights