Worried about breaking links

I have just upgraded from v3 to vBulletin v4. On vBulletin v3 I was using a custom SEO mod (tfSEO i think) and I'm not using a custom .htaccess file to make sure that all of those old URLS redirect to the new vBulletin v4 urls.

Code:

Options +FollowSymlinks
RewriteEngine on

RewriteRule ^(.*)t([0-9]+)(.*)newpost(.*)$ showthread.php?t=$2&goto=newpost [QSA,L]
RewriteRule ^(.*)f(.*)/(.*)t([0-9]+)(.*)/post([0-9]+)(.*)$ showpost.php?p=$6 [QSA,L]
RewriteRule ^(.*)f(.*)/(.*)t([0-9]+)(.*)/([a-z]+)([0-9]+)(.*)$ showthread.php?t=$4&page=$7 [QSA,L]
RewriteRule ^(.*)f(.*)/(.*)t([0-9]+)(.*)$ showthread.php?t=$4 [QSA,L]
RewriteRule ^(.*)f([0-9]+)/([a-z]+)([0-9]+)(.*)$ forumdisplay.php?f=$2&page=$4 [QSA,L]
RewriteRule ^f([0-9]+)(.*)$ forumdisplay.php?f=$1 [QSA,L]
RewriteRule ^(.*)-f([0-9]+)(.*)$ forumdisplay.php?f=$2 [QSA,L]

So my question is if I install VBSeo will I still be able to use this htaccess for all of the old links to redirect to the new VBSeo friendly links.

Thanks
Sean

Yes, vbseo will automatically take the showthread url and redirect it to the final destination.

so, you will have 2 sets of 301s.

tfseo -> vb -> vbseo