For me, the Basilisk II 142 guide worked.
When I doubleclicked System 7.53 01of19.smi, I got a dialog box which I pressed agree on.
Then I got a floppy disk on my desktop. I doubleclicked on Sys7.5 V7.5.3 CD Inst.
I put the files on my desktop. Then I compressed the file using the Magic Menu from StuffIt Deluxe 5.5.
Then I uploaded System 7.53 to my SkyDrive.
The download link is: https://skydrive.live.com/?cid=7349e61a ... 66B274!304
Just click on System 7.5.3.sit.
You need StuffIt Expander.
Get it here: http://www.emaculation.com/basilisk/stu ... der_55.bin
Then follow this advice: If you use HFV Explorer to transfer that file to your disk image, you can solve the problem of expanding the archive of Stuffit in the first place.
Then just start Basilisk and double click on Aladdin Expander ™ 5.5 Installer and then install it.
Then you can double click on System 7.5.3.sit to expand.
I hope you do read this. I wanted to help.