You can only see code you sent for the problem or solutions for problems you created.
To see your code: After logging in, on the problem site click My status and then on your submission id to see source code sent by you:
Btw. if you asking about English spoj (spoj.com) use main forum categories:http://discuss.spoj.com/c/online-judge-system You asked your question in the Polish section of the forum.