FontCreator can only open TTF/OTF/WOFF fonts, or its own project files.
You can use Scanahand to generate a font based on a template, or if you only want to make a single font, use this online font generator:
http://www.yourfonts.com/
The yourfonts two page templates includes over 200 characters and covers English, German, French, Dutch, Italian, Danish, Swedish, Norwegian, Spanish, Portuguese, Basque, Estonian, Faeroese, Frisian, Irish, Galician, Hungarian, Icelandic, Albanian, and Esperanto.
The first template page contains the space character, a signature, and the following 106 characters:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ? ! % & a b c d e f g h i j k l m n o p q r s t u v w x y z : ; . , 0 1 2 3 4 5 6 7 8 9 + - ~ = ± # $ € £ ¢ ( ) { } < > \ / ’ " * 
@ © ® _ | • ¤ § ° ¶ † ‡
The second page contains 110 additional (mostly accented) characters:
À Á Â Ã Ä Å A Ç C C È É Ê Ë E G H Ì Í Î Ï J L N Ñ Ò Ó Ô Õ Ö O Ø S S Š Ù Ú Û Ü U U Ý Ÿ Z Z Ž à á â ã ä å a ç c c è é ê ë e ƒ g h i ì í î ï j l n ñ ò ó ô õ ö o ø s s š ù ú û ü u u ý ÿ z z ž Æ Œ Ð Þ ß æ œ ð þ µ ¿ ¡ « » ¬ ²
Be aware yourfonts doesn’t cover Czech, but you can use Scanahand premium edition to make use of custom templates.
It is good to know YourFonts and Scanahand both generate fonts with the best raster to vector algorithm to generate a font.
I already explained this in your earlier thread.
What don’t you understand?
The yourfonts server is down, so please try again in 30 minutes.
It is now back online, but it requires a reboot in an hour or so.
It is now back online.
Please carefully read the instructions on the website, especially these:
http://www.yourfonts.com/
http://www.yourfonts.com/print.html
http://www.yourfonts.com/scan.html
You will waste your time and ours if you ignore them.