请帮我校正这段英语

我的名字是XXX, 我是你moving image课上的一名学生，我想我这个星期四没办法来上课，因为我必须去上print production这个课程，这个课程只有每个星期四开课。
我对于我的缺席感到抱歉。

～·～·～·～·～

My name is ____, and I am a student in your moving image class. However, I won't be able to attend class this Thursday because I have signed up for another class, print production, which is also meeting this Thursday. Print production is only available on Thursdays, so I must attend that class at that time. I apologize in advance for my absence.

My name is XXX, I'm studying Moving Image in your class,
but I can't attend this thursday, because I had signed up
the Print Production course which I must attend. This course is available on every thursday only .
I am so sorry about absenting of your class.

主要更改内容：课程第一个字母大写， was sign up改为had signed up. availabel前面要加is

My name is Bill/Jack/Tom...I am in your "moving image"(这是啥课...)class. But I don't think I can make it this Thursday b