Safari swears that the server for

ftp://ftp.symantec.com/public/english_us_canada/products/think_pascal/updates/thinkpascal4.5d4.sit.hqx

is 'not responding'. And

http://www.startaid.com/review/2490473/Ingemar--39;s-guide-to-Think-Pascal-4-5d4.html

is no better, but without Safari's message. I could go on listing dead links, but you will get more joy (most joy, in fact) from

http://pascal-central.com/tools/think.4.5d4.bin

Then go back to the link

http://www.lysator.liu.se/~ingemar/tp45d4/think.html

to get the patches. URLs are in full so that you can see what to avoid.

de