Harley Davidson Forums - Why Can't I View Links to Pics?

It's the links to pics that don't work. When people have pics already posted with their comments, I see them just fine.

For example, when I click on links like these:

Attached Images

http://images.ibsrv.net/ibsrv/res/sr...attach/jpg.gif RKC_hard_bags.jpg (97.8 KB, 1247 views)
http://images.ibsrv.net/ibsrv/res/sr...attach/jpg.gif bags01.jpg (82.5 KB, 386 views)
http://images.ibsrv.net/ibsrv/res/sr...attach/jpg.gif bags02.jpg (50.7 KB, 764 views)
http://images.ibsrv.net/ibsrv/res/sr...attach/jpg.gif bags03.jpg (79.9 KB, 534 views)
http://images.ibsrv.net/ibsrv/res/sr...attach/jpg.gif bags04.jpg (77.5 KB, 402 views)

from

https://www.hdforums.com/forum/attac..._hard_bags.jpg

I get this message:

vBulletin Message

jtomhd, you do not have permission to access this page. This could be due to one of several reasons:

<LI itxtvisited="1">Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.

I'm logged on and I'm posting, so what do I need to do to access links to pics like these?

Thanks to anybody's help in advance,

John