how can i access my chat logs from a different PC. I saved them on a different computer then im can use now. does windows live keep a log of every message sent?

You cant. The logs are saved on the actual computer and so unless there is another program that allows you to do it through file sharing, you cant.

This post is based on my knowledge of computers which is not the best so I could be wrong

You could try adding all your log files to a .ZIP file. then sending the .ZIP file as an attachment from your hotmail address to Your same hotmail address. This will place the attachment online in your inbox (By Just sending the mail to yourself), accessible from another computer by logging into your hotmail account on the web
If the .ZIP files become too large for sending you can always attach .ZIP's to more e-mails until all log files are available.
This is only asuming the other computer will have internet connection
There is also no need for programes, you can buy a CD-R blank disk to add your files which need transfering. Floopy disks are also good, but are insufficient in space.
I hope that helps