Hi Jane. You didn't post in a Surname Project forum, but the answer is the same regardless of surname.
You can transfer your yDNA results from a Sorenson-based lab (ancestry uses Sorenson) into FTDNA for a $19 fee and then join the relevant surname project. However, this gives you incomplete comparisons and very limited capabilities at FTDNA.
It is much more effective to use the $58 transfer option, provide a new sample, and then have a solid comparison of your result to the men tested at FTDNA, plus a haplogroup estimate, and access with full capabilities to use the tools at FTDNA - which are far superior to those provided at ancestry.
Use this link:http://www.familytreedna.com/landing/ydna-transfer.aspx
You can also transfer atDNA results from 23andMe and ancestry to FTDNA for a fee. Use this link:https://www.familytreedna.com/order-now.aspx?ty=1339